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[Breaking] Require format to be specified in input URI. (#9077)

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Previously, we use `libsvm` as default when format is not specified. However, the dmlc
data parser is not particularly robust against errors, and the most common type of error
is undefined format.

Along with which, we will recommend users to use other data loader instead. We will
continue the maintenance of the parsers as it's currently used for many internal tests
including federated learning.
This commit is contained in:
Jiaming Yuan 2023-04-28 19:45:15 +08:00 committed by GitHub
parent e922004329
commit 1f9a57d17b
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58 changed files with 327 additions and 268 deletions
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2
R-package/tests/testthat/test_dmatrix.R
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@ -72,7 +72,7 @@ test_that("xgb.DMatrix: saving, loading", {
tmp <- c("0 1:1 2:1", "1 3:1", "0 1:1") tmp <- c("0 1:1 2:1", "1 3:1", "0 1:1")
tmp_file <- tempfile(fileext = ".libsvm") tmp_file <- tempfile(fileext = ".libsvm")
writeLines(tmp, tmp_file) writeLines(tmp, tmp_file)
dtest4 <- xgb.DMatrix(tmp_file, silent = TRUE) dtest4 <- xgb.DMatrix(paste(tmp_file, "?format=libsvm", sep = ""), silent = TRUE)
expect_equal(dim(dtest4), c(3, 4)) expect_equal(dim(dtest4), c(3, 4))
expect_equal(getinfo(dtest4, 'label'), c(0, 1, 0)) expect_equal(getinfo(dtest4, 'label'), c(0, 1, 0))

6
demo/CLI/binary_classification/mushroom.conf
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@ -20,10 +20,10 @@ num_round = 2
# 0 means do not save any model except the final round model # 0 means do not save any model except the final round model
save_period = 2 save_period = 2
# The path of training data # The path of training data
data = "agaricus.txt.train" data = "agaricus.txt.train?format=libsvm"
# The path of validation data, used to monitor training process, here [test] sets name of the validation set # The path of validation data, used to monitor training process, here [test] sets name of the validation set
eval[test] = "agaricus.txt.test" eval[test] = "agaricus.txt.test?format=libsvm"
# evaluate on training data as well each round # evaluate on training data as well each round
eval_train = 1 eval_train = 1
# The path of test data # The path of test data
test:data = "agaricus.txt.test" test:data = "agaricus.txt.test?format=libsvm"

6
demo/CLI/regression/machine.conf
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@ -21,8 +21,8 @@ num_round = 2
# 0 means do not save any model except the final round model # 0 means do not save any model except the final round model
save_period = 0 save_period = 0
# The path of training data # The path of training data
data = "machine.txt.train" data = "machine.txt.train?format=libsvm"
# The path of validation data, used to monitor training process, here [test] sets name of the validation set # The path of validation data, used to monitor training process, here [test] sets name of the validation set
eval[test] = "machine.txt.test" eval[test] = "machine.txt.test?format=libsvm"
# The path of test data # The path of test data
test:data = "machine.txt.test" test:data = "machine.txt.test?format=libsvm"

4
demo/c-api/basic/c-api-demo.c
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@ -42,8 +42,8 @@ int main() {
// load the data // load the data
DMatrixHandle dtrain, dtest; DMatrixHandle dtrain, dtest;
safe_xgboost(XGDMatrixCreateFromFile("../../data/agaricus.txt.train", silent, &dtrain)); safe_xgboost(XGDMatrixCreateFromFile("../../data/agaricus.txt.train?format=libsvm", silent, &dtrain));
safe_xgboost(XGDMatrixCreateFromFile("../../data/agaricus.txt.test", silent, &dtest)); safe_xgboost(XGDMatrixCreateFromFile("../../data/agaricus.txt.test?format=libsvm", silent, &dtest));
// create the booster // create the booster
BoosterHandle booster; BoosterHandle booster;

16
demo/guide-python/boost_from_prediction.py
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@ -7,15 +7,19 @@ import os
import xgboost as xgb import xgboost as xgb
CURRENT_DIR = os.path.dirname(__file__) CURRENT_DIR = os.path.dirname(__file__)
dtrain = xgb.DMatrix(os.path.join(CURRENT_DIR, '../data/agaricus.txt.train')) dtrain = xgb.DMatrix(
dtest = xgb.DMatrix(os.path.join(CURRENT_DIR, '../data/agaricus.txt.test')) os.path.join(CURRENT_DIR, "../data/agaricus.txt.train?format=libsvm")
watchlist = [(dtest, 'eval'), (dtrain, 'train')] )
dtest = xgb.DMatrix(
os.path.join(CURRENT_DIR, "../data/agaricus.txt.test?format=libsvm")
)
watchlist = [(dtest, "eval"), (dtrain, "train")]
### ###
# advanced: start from a initial base prediction # advanced: start from a initial base prediction
# #
print('start running example to start from a initial prediction') print("start running example to start from a initial prediction")
# specify parameters via map, definition are same as c++ version # specify parameters via map, definition are same as c++ version
param = {'max_depth': 2, 'eta': 1, 'objective': 'binary:logistic'} param = {"max_depth": 2, "eta": 1, "objective": "binary:logistic"}
# train xgboost for 1 round # train xgboost for 1 round
bst = xgb.train(param, dtrain, 1, watchlist) bst = xgb.train(param, dtrain, 1, watchlist)
# Note: we need the margin value instead of transformed prediction in # Note: we need the margin value instead of transformed prediction in
@ -27,5 +31,5 @@ ptest = bst.predict(dtest, output_margin=True)
dtrain.set_base_margin(ptrain) dtrain.set_base_margin(ptrain)
dtest.set_base_margin(ptest) dtest.set_base_margin(ptest)
print('this is result of running from initial prediction') print("this is result of running from initial prediction")
bst = xgb.train(param, dtrain, 1, watchlist) bst = xgb.train(param, dtrain, 1, watchlist)

62
demo/guide-python/cross_validation.py
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@ -10,27 +10,45 @@ import xgboost as xgb
# load data in do training # load data in do training
CURRENT_DIR = os.path.dirname(__file__) CURRENT_DIR = os.path.dirname(__file__)
dtrain = xgb.DMatrix(os.path.join(CURRENT_DIR, '../data/agaricus.txt.train')) dtrain = xgb.DMatrix(
param = {'max_depth':2, 'eta':1, 'objective':'binary:logistic'} os.path.join(CURRENT_DIR, "../data/agaricus.txt.train?format=libsvm")
)
param = {"max_depth": 2, "eta": 1, "objective": "binary:logistic"}
num_round = 2 num_round = 2
print('running cross validation') print("running cross validation")
# do cross validation, this will print result out as # do cross validation, this will print result out as
# [iteration] metric_name:mean_value+std_value # [iteration] metric_name:mean_value+std_value
# std_value is standard deviation of the metric # std_value is standard deviation of the metric
xgb.cv(param, dtrain, num_round, nfold=5, xgb.cv(
metrics={'error'}, seed=0, param,
callbacks=[xgb.callback.EvaluationMonitor(show_stdv=True)]) dtrain,
num_round,
nfold=5,
metrics={"error"},
seed=0,
callbacks=[xgb.callback.EvaluationMonitor(show_stdv=True)],
)
print('running cross validation, disable standard deviation display') print("running cross validation, disable standard deviation display")
# do cross validation, this will print result out as # do cross validation, this will print result out as
# [iteration] metric_name:mean_value # [iteration] metric_name:mean_value
res = xgb.cv(param, dtrain, num_boost_round=10, nfold=5, res = xgb.cv(
metrics={'error'}, seed=0, param,
callbacks=[xgb.callback.EvaluationMonitor(show_stdv=False), dtrain,
xgb.callback.EarlyStopping(3)]) num_boost_round=10,
nfold=5,
metrics={"error"},
seed=0,
callbacks=[
xgb.callback.EvaluationMonitor(show_stdv=False),
xgb.callback.EarlyStopping(3),
],
)
print(res) print(res)
print('running cross validation, with preprocessing function') print("running cross validation, with preprocessing function")
# define the preprocessing function # define the preprocessing function
# used to return the preprocessed training, test data, and parameter # used to return the preprocessed training, test data, and parameter
# we can use this to do weight rescale, etc. # we can use this to do weight rescale, etc.
@ -38,32 +56,36 @@ print('running cross validation, with preprocessing function')
def fpreproc(dtrain, dtest, param): def fpreproc(dtrain, dtest, param):
label = dtrain.get_label() label = dtrain.get_label()
ratio = float(np.sum(label == 0)) / np.sum(label == 1) ratio = float(np.sum(label == 0)) / np.sum(label == 1)
param['scale_pos_weight'] = ratio param["scale_pos_weight"] = ratio
return (dtrain, dtest, param) return (dtrain, dtest, param)
# do cross validation, for each fold # do cross validation, for each fold
# the dtrain, dtest, param will be passed into fpreproc # the dtrain, dtest, param will be passed into fpreproc
# then the return value of fpreproc will be used to generate # then the return value of fpreproc will be used to generate
# results of that fold # results of that fold
xgb.cv(param, dtrain, num_round, nfold=5, xgb.cv(param, dtrain, num_round, nfold=5, metrics={"auc"}, seed=0, fpreproc=fpreproc)
metrics={'auc'}, seed=0, fpreproc=fpreproc)
### ###
# you can also do cross validation with customized loss function # you can also do cross validation with customized loss function
# See custom_objective.py # See custom_objective.py
## ##
print('running cross validation, with customized loss function') print("running cross validation, with customized loss function")
def logregobj(preds, dtrain): def logregobj(preds, dtrain):
labels = dtrain.get_label() labels = dtrain.get_label()
preds = 1.0 / (1.0 + np.exp(-preds)) preds = 1.0 / (1.0 + np.exp(-preds))
grad = preds - labels grad = preds - labels
hess = preds * (1.0 - preds) hess = preds * (1.0 - preds)
return grad, hess return grad, hess
def evalerror(preds, dtrain): def evalerror(preds, dtrain):
labels = dtrain.get_label() labels = dtrain.get_label()
return 'error', float(sum(labels != (preds > 0.0))) / len(labels) return "error", float(sum(labels != (preds > 0.0))) / len(labels)
param = {'max_depth':2, 'eta':1}
param = {"max_depth": 2, "eta": 1}
# train with customized objective # train with customized objective
xgb.cv(param, dtrain, num_round, nfold=5, seed=0, xgb.cv(param, dtrain, num_round, nfold=5, seed=0, obj=logregobj, feval=evalerror)
obj=logregobj, feval=evalerror)

35
demo/guide-python/evals_result.py
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@ -7,28 +7,37 @@ import os
import xgboost as xgb import xgboost as xgb
CURRENT_DIR = os.path.dirname(__file__) CURRENT_DIR = os.path.dirname(__file__)
dtrain = xgb.DMatrix(os.path.join(CURRENT_DIR, '../data/agaricus.txt.train')) dtrain = xgb.DMatrix(
dtest = xgb.DMatrix(os.path.join(CURRENT_DIR, '../data/agaricus.txt.test')) os.path.join(CURRENT_DIR, "../data/agaricus.txt.train?format=libsvm")
)
dtest = xgb.DMatrix(
os.path.join(CURRENT_DIR, "../data/agaricus.txt.test?format=libsvm")
)
param = [('max_depth', 2), ('objective', 'binary:logistic'), ('eval_metric', 'logloss'), ('eval_metric', 'error')] param = [
("max_depth", 2),
("objective", "binary:logistic"),
("eval_metric", "logloss"),
("eval_metric", "error"),
]
num_round = 2 num_round = 2
watchlist = [(dtest,'eval'), (dtrain,'train')] watchlist = [(dtest, "eval"), (dtrain, "train")]
evals_result = {} evals_result = {}
bst = xgb.train(param, dtrain, num_round, watchlist, evals_result=evals_result) bst = xgb.train(param, dtrain, num_round, watchlist, evals_result=evals_result)
print('Access logloss metric directly from evals_result:') print("Access logloss metric directly from evals_result:")
print(evals_result['eval']['logloss']) print(evals_result["eval"]["logloss"])
print('') print("")
print('Access metrics through a loop:') print("Access metrics through a loop:")
for e_name, e_mtrs in evals_result.items(): for e_name, e_mtrs in evals_result.items():
print('- {}'.format(e_name)) print("- {}".format(e_name))
for e_mtr_name, e_mtr_vals in e_mtrs.items(): for e_mtr_name, e_mtr_vals in e_mtrs.items():
print(' - {}'.format(e_mtr_name)) print(" - {}".format(e_mtr_name))
print(' - {}'.format(e_mtr_vals)) print(" - {}".format(e_mtr_vals))
print('') print("")
print('Access complete dictionary:') print("Access complete dictionary:")
print(evals_result) print(evals_result)

26
demo/guide-python/generalized_linear_model.py
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@ -11,14 +11,22 @@ import xgboost as xgb
# basically, we are using linear model, instead of tree for our boosters # basically, we are using linear model, instead of tree for our boosters
## ##
CURRENT_DIR = os.path.dirname(__file__) CURRENT_DIR = os.path.dirname(__file__)
dtrain = xgb.DMatrix(os.path.join(CURRENT_DIR, '../data/agaricus.txt.train')) dtrain = xgb.DMatrix(
dtest = xgb.DMatrix(os.path.join(CURRENT_DIR, '../data/agaricus.txt.test')) os.path.join(CURRENT_DIR, "../data/agaricus.txt.train?format=libsvm")
)
dtest = xgb.DMatrix(
os.path.join(CURRENT_DIR, "../data/agaricus.txt.test?format=libsvm")
)
# change booster to gblinear, so that we are fitting a linear model # change booster to gblinear, so that we are fitting a linear model
# alpha is the L1 regularizer # alpha is the L1 regularizer
# lambda is the L2 regularizer # lambda is the L2 regularizer
# you can also set lambda_bias which is L2 regularizer on the bias term # you can also set lambda_bias which is L2 regularizer on the bias term
param = {'objective':'binary:logistic', 'booster':'gblinear', param = {
'alpha': 0.0001, 'lambda': 1} "objective": "binary:logistic",
"booster": "gblinear",
"alpha": 0.0001,
"lambda": 1,
}
# normally, you do not need to set eta (step_size) # normally, you do not need to set eta (step_size)
# XGBoost uses a parallel coordinate descent algorithm (shotgun), # XGBoost uses a parallel coordinate descent algorithm (shotgun),
@ -29,9 +37,15 @@ param = {'objective':'binary:logistic', 'booster':'gblinear',
## ##
# the rest of settings are the same # the rest of settings are the same
## ##
watchlist = [(dtest, 'eval'), (dtrain, 'train')] watchlist = [(dtest, "eval"), (dtrain, "train")]
num_round = 4 num_round = 4
bst = xgb.train(param, dtrain, num_round, watchlist) bst = xgb.train(param, dtrain, num_round, watchlist)
preds = bst.predict(dtest) preds = bst.predict(dtest)
labels = dtest.get_label() labels = dtest.get_label()
print('error=%f' % (sum(1 for i in range(len(preds)) if int(preds[i] > 0.5) != labels[i]) / float(len(preds)))) print(
"error=%f"
% (
sum(1 for i in range(len(preds)) if int(preds[i] > 0.5) != labels[i])
/ float(len(preds))
)
)

4
demo/guide-python/predict_first_ntree.py
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@ -16,8 +16,8 @@ test = os.path.join(CURRENT_DIR, "../data/agaricus.txt.test")
def native_interface(): def native_interface():
# load data in do training # load data in do training
dtrain = xgb.DMatrix(train) dtrain = xgb.DMatrix(train + "?format=libsvm")
dtest = xgb.DMatrix(test) dtest = xgb.DMatrix(test + "?format=libsvm")
param = {"max_depth": 2, "eta": 1, "objective": "binary:logistic"} param = {"max_depth": 2, "eta": 1, "objective": "binary:logistic"}
watchlist = [(dtest, "eval"), (dtrain, "train")] watchlist = [(dtest, "eval"), (dtrain, "train")]
num_round = 3 num_round = 3

14
demo/guide-python/predict_leaf_indices.py
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@ -8,14 +8,18 @@ import xgboost as xgb
# load data in do training # load data in do training
CURRENT_DIR = os.path.dirname(__file__) CURRENT_DIR = os.path.dirname(__file__)
dtrain = xgb.DMatrix(os.path.join(CURRENT_DIR, '../data/agaricus.txt.train')) dtrain = xgb.DMatrix(
dtest = xgb.DMatrix(os.path.join(CURRENT_DIR, '../data/agaricus.txt.test')) os.path.join(CURRENT_DIR, "../data/agaricus.txt.train?format=libsvm")
param = {'max_depth': 2, 'eta': 1, 'objective': 'binary:logistic'} )
watchlist = [(dtest, 'eval'), (dtrain, 'train')] dtest = xgb.DMatrix(
os.path.join(CURRENT_DIR, "../data/agaricus.txt.test?format=libsvm")
)
param = {"max_depth": 2, "eta": 1, "objective": "binary:logistic"}
watchlist = [(dtest, "eval"), (dtrain, "train")]
num_round = 3 num_round = 3
bst = xgb.train(param, dtrain, num_round, watchlist) bst = xgb.train(param, dtrain, num_round, watchlist)
print('start testing predict the leaf indices') print("start testing predict the leaf indices")
# predict using first 2 tree # predict using first 2 tree
leafindex = bst.predict( leafindex = bst.predict(
dtest, iteration_range=(0, 2), pred_leaf=True, strict_shape=True dtest, iteration_range=(0, 2), pred_leaf=True, strict_shape=True

6
doc/tutorials/external_memory.rst
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@ -77,7 +77,7 @@ The external memory version takes in the following `URI <https://en.wikipedia.or
.. code-block:: none .. code-block:: none
filename#cacheprefix filename?format=libsvm#cacheprefix
The ``filename`` is the normal path to LIBSVM format file you want to load in, and The ``filename`` is the normal path to LIBSVM format file you want to load in, and
``cacheprefix`` is a path to a cache file that XGBoost will use for caching preprocessed ``cacheprefix`` is a path to a cache file that XGBoost will use for caching preprocessed
@ -97,13 +97,13 @@ you have a dataset stored in a file similar to ``agaricus.txt.train`` with LIBSV
.. code-block:: python .. code-block:: python
dtrain = DMatrix('../data/agaricus.txt.train#dtrain.cache') dtrain = DMatrix('../data/agaricus.txt.train?format=libsvm#dtrain.cache')
XGBoost will first load ``agaricus.txt.train`` in, preprocess it, then write to a new file named XGBoost will first load ``agaricus.txt.train`` in, preprocess it, then write to a new file named
``dtrain.cache`` as an on disk cache for storing preprocessed data in an internal binary format. For ``dtrain.cache`` as an on disk cache for storing preprocessed data in an internal binary format. For
more notes about text input formats, see :doc:`/tutorials/input_format`. more notes about text input formats, see :doc:`/tutorials/input_format`.
For CLI version, simply add the cache suffix, e.g. ``"../data/agaricus.txt.train#dtrain.cache"``. For CLI version, simply add the cache suffix, e.g. ``"../data/agaricus.txt.train?format=libsvm#dtrain.cache"``.
********************************** **********************************

7
doc/tutorials/input_format.rst
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@ -2,10 +2,15 @@
Text Input Format of DMatrix Text Input Format of DMatrix
############################ ############################
.. _basic_input_format:
Here we will briefly describe the text input formats for XGBoost. However, for users with access to a supported language environment like Python or R, it's recommended to use data parsers from that ecosystem instead. For instance, :py:func:`sklearn.datasets.load_svmlight_file`.
****************** ******************
Basic Input Format Basic Input Format
****************** ******************
XGBoost currently supports two text formats for ingesting data: LIBSVM and CSV. The rest of this document will describe the LIBSVM format. (See `this Wikipedia article <https://en.wikipedia.org/wiki/Comma-separated_values>`_ for a description of the CSV format.). Please be careful that, XGBoost does **not** understand file extensions, nor try to guess the file format, as there is no universal agreement upon file extension of LIBSVM or CSV. Instead it employs `URI <https://en.wikipedia.org/wiki/Uniform_Resource_Identifier>`_ format for specifying the precise input file type. For example if you provide a `csv` file ``./data.train.csv`` as input, XGBoost will blindly use the default LIBSVM parser to digest it and generate a parser error. Instead, users need to provide an URI in the form of ``train.csv?format=csv``. For external memory input, the URI should of a form similar to ``train.csv?format=csv#dtrain.cache``. See :ref:`python_data_interface` and :doc:`/tutorials/external_memory` also.
XGBoost currently supports two text formats for ingesting data: LIBSVM and CSV. The rest of this document will describe the LIBSVM format. (See `this Wikipedia article <https://en.wikipedia.org/wiki/Comma-separated_values>`_ for a description of the CSV format.). Please be careful that, XGBoost does **not** understand file extensions, nor try to guess the file format, as there is no universal agreement upon file extension of LIBSVM or CSV. Instead it employs `URI <https://en.wikipedia.org/wiki/Uniform_Resource_Identifier>`_ format for specifying the precise input file type. For example if you provide a `csv` file ``./data.train.csv`` as input, XGBoost will blindly use the default LIBSVM parser to digest it and generate a parser error. Instead, users need to provide an URI in the form of ``train.csv?format=csv`` or ``train.csv?format=libsvm``. For external memory input, the URI should of a form similar to ``train.csv?format=csv#dtrain.cache``. See :ref:`python_data_interface` and :doc:`/tutorials/external_memory` also.
For training or predicting, XGBoost takes an instance file with the format as below: For training or predicting, XGBoost takes an instance file with the format as below:

6
include/xgboost/c_api.h
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@ -138,7 +138,11 @@ XGB_DLL int XGDMatrixCreateFromFile(const char *fname, int silent, DMatrixHandle
/*! /*!
* \brief load a data matrix * \brief load a data matrix
* \param config JSON encoded parameters for DMatrix construction. Accepted fields are: * \param config JSON encoded parameters for DMatrix construction. Accepted fields are:
* - uri: The URI of the input file.
* - uri: The URI of the input file. The URI parameter `format` is required when loading text data.
* \verbatim embed:rst:leading-asterisk
* See :doc:`/tutorials/input_format` for more info.
* \endverbatim
* - silent (optional): Whether to print message during loading. Default to true. * - silent (optional): Whether to print message during loading. Default to true.
* - data_split_mode (optional): Whether to split by row or column. In distributed mode, the * - data_split_mode (optional): Whether to split by row or column. In distributed mode, the
* file is split accordingly; otherwise this is only an indicator on how the file was split * file is split accordingly; otherwise this is only an indicator on how the file was split

12
include/xgboost/data.h
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@ -566,21 +566,17 @@ class DMatrix {
return Info().num_nonzero_ == Info().num_row_ * Info().num_col_; return Info().num_nonzero_ == Info().num_row_ * Info().num_col_;
} }
/*! /**
* \brief Load DMatrix from URI. * \brief Load DMatrix from URI.
*
* \param uri The URI of input. * \param uri The URI of input.
* \param silent Whether print information during loading. * \param silent Whether print information during loading.
* \param data_split_mode In distributed mode, split the input according this mode; otherwise, * \param data_split_mode In distributed mode, split the input according this mode; otherwise,
* it's just an indicator on how the input was split beforehand. * it's just an indicator on how the input was split beforehand.
* \param file_format The format type of the file, used for dmlc::Parser::Create.
* By default "auto" will be able to load in both local binary file.
* \param page_size Page size for external memory.
* \return The created DMatrix. * \return The created DMatrix.
*/ */
static DMatrix* Load(const std::string& uri, static DMatrix* Load(const std::string& uri, bool silent = true,
bool silent = true, DataSplitMode data_split_mode = DataSplitMode::kRow);
DataSplitMode data_split_mode = DataSplitMode::kRow,
const std::string& file_format = "auto");
/** /**
* \brief Creates a new DMatrix from an external data adapter. * \brief Creates a new DMatrix from an external data adapter.

9
jvm-packages/xgboost4j-example/src/main/java/ml/dmlc/xgboost4j/java/example/BasicWalkThrough.java
View File

@ -1,5 +1,5 @@
/* /*
Copyright (c) 2014-2021 by Contributors Copyright (c) 2014-2023 by Contributors
Licensed under the Apache License, Version 2.0 (the "License"); Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License. you may not use this file except in compliance with the License.
@ -62,8 +62,8 @@ public class BasicWalkThrough {
public static void main(String[] args) throws IOException, XGBoostError { public static void main(String[] args) throws IOException, XGBoostError {
// load file from text file, also binary buffer generated by xgboost4j // load file from text file, also binary buffer generated by xgboost4j
DMatrix trainMat = new DMatrix("../../demo/data/agaricus.txt.train"); DMatrix trainMat = new DMatrix("../../demo/data/agaricus.txt.train?format=libsvm");
DMatrix testMat = new DMatrix("../../demo/data/agaricus.txt.test"); DMatrix testMat = new DMatrix("../../demo/data/agaricus.txt.test?format=libsvm");
HashMap<String, Object> params = new HashMap<String, Object>(); HashMap<String, Object> params = new HashMap<String, Object>();
params.put("eta", 1.0); params.put("eta", 1.0);
@ -112,7 +112,8 @@ public class BasicWalkThrough {
System.out.println("start build dmatrix from csr sparse data ..."); System.out.println("start build dmatrix from csr sparse data ...");
//build dmatrix from CSR Sparse Matrix //build dmatrix from CSR Sparse Matrix
DataLoader.CSRSparseData spData = DataLoader.loadSVMFile("../../demo/data/agaricus.txt.train"); DataLoader.CSRSparseData spData =
DataLoader.loadSVMFile("../../demo/data/agaricus.txt.train?format=libsvm");
DMatrix trainMat2 = new DMatrix(spData.rowHeaders, spData.colIndex, spData.data, DMatrix trainMat2 = new DMatrix(spData.rowHeaders, spData.colIndex, spData.data,
DMatrix.SparseType.CSR, 127); DMatrix.SparseType.CSR, 127);

4
jvm-packages/xgboost4j-example/src/main/java/ml/dmlc/xgboost4j/java/example/BoostFromPrediction.java
View File

@ -32,8 +32,8 @@ public class BoostFromPrediction {
System.out.println("start running example to start from a initial prediction"); System.out.println("start running example to start from a initial prediction");
// load file from text file, also binary buffer generated by xgboost4j // load file from text file, also binary buffer generated by xgboost4j
DMatrix trainMat = new DMatrix("../../demo/data/agaricus.txt.train"); DMatrix trainMat = new DMatrix("../../demo/data/agaricus.txt.train?format=libsvm");
DMatrix testMat = new DMatrix("../../demo/data/agaricus.txt.test"); DMatrix testMat = new DMatrix("../../demo/data/agaricus.txt.test?format=libsvm");
//specify parameters //specify parameters
HashMap<String, Object> params = new HashMap<String, Object>(); HashMap<String, Object> params = new HashMap<String, Object>();

2
jvm-packages/xgboost4j-example/src/main/java/ml/dmlc/xgboost4j/java/example/CrossValidation.java
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@ -30,7 +30,7 @@ import ml.dmlc.xgboost4j.java.XGBoostError;
public class CrossValidation { public class CrossValidation {
public static void main(String[] args) throws IOException, XGBoostError { public static void main(String[] args) throws IOException, XGBoostError {
//load train mat //load train mat
DMatrix trainMat = new DMatrix("../../demo/data/agaricus.txt.train"); DMatrix trainMat = new DMatrix("../../demo/data/agaricus.txt.train?format=libsvm");
//set params //set params
HashMap<String, Object> params = new HashMap<String, Object>(); HashMap<String, Object> params = new HashMap<String, Object>();

4
jvm-packages/xgboost4j-example/src/main/java/ml/dmlc/xgboost4j/java/example/CustomObjective.java
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@ -139,9 +139,9 @@ public class CustomObjective {
public static void main(String[] args) throws XGBoostError { public static void main(String[] args) throws XGBoostError {
//load train mat (svmlight format) //load train mat (svmlight format)
DMatrix trainMat = new DMatrix("../../demo/data/agaricus.txt.train"); DMatrix trainMat = new DMatrix("../../demo/data/agaricus.txt.train?format=libsvm");
//load valid mat (svmlight format) //load valid mat (svmlight format)
DMatrix testMat = new DMatrix("../../demo/data/agaricus.txt.test"); DMatrix testMat = new DMatrix("../../demo/data/agaricus.txt.test?format=libsvm");
HashMap<String, Object> params = new HashMap<String, Object>(); HashMap<String, Object> params = new HashMap<String, Object>();
params.put("eta", 1.0); params.put("eta", 1.0);

4
jvm-packages/xgboost4j-example/src/main/java/ml/dmlc/xgboost4j/java/example/EarlyStopping.java
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@ -29,9 +29,9 @@ import ml.dmlc.xgboost4j.java.example.util.DataLoader;
public class EarlyStopping { public class EarlyStopping {
public static void main(String[] args) throws IOException, XGBoostError { public static void main(String[] args) throws IOException, XGBoostError {
DataLoader.CSRSparseData trainCSR = DataLoader.CSRSparseData trainCSR =
DataLoader.loadSVMFile("../../demo/data/agaricus.txt.train"); DataLoader.loadSVMFile("../../demo/data/agaricus.txt.train?format=libsvm");
DataLoader.CSRSparseData testCSR = DataLoader.CSRSparseData testCSR =
DataLoader.loadSVMFile("../../demo/data/agaricus.txt.test"); DataLoader.loadSVMFile("../../demo/data/agaricus.txt.test?format=libsvm");
Map<String, Object> paramMap = new HashMap<String, Object>() { Map<String, Object> paramMap = new HashMap<String, Object>() {
{ {

4
jvm-packages/xgboost4j-example/src/main/java/ml/dmlc/xgboost4j/java/example/ExternalMemory.java
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@ -32,8 +32,8 @@ public class ExternalMemory {
//this is the only difference, add a # followed by a cache prefix name //this is the only difference, add a # followed by a cache prefix name
//several cache file with the prefix will be generated //several cache file with the prefix will be generated
//currently only support convert from libsvm file //currently only support convert from libsvm file
DMatrix trainMat = new DMatrix("../../demo/data/agaricus.txt.train#dtrain.cache"); DMatrix trainMat = new DMatrix("../../demo/data/agaricus.txt.train?format=libsvm#dtrain.cache");
DMatrix testMat = new DMatrix("../../demo/data/agaricus.txt.test#dtest.cache"); DMatrix testMat = new DMatrix("../../demo/data/agaricus.txt.test?format=libsvm#dtest.cache");
//specify parameters //specify parameters
HashMap<String, Object> params = new HashMap<String, Object>(); HashMap<String, Object> params = new HashMap<String, Object>();

4
jvm-packages/xgboost4j-example/src/main/java/ml/dmlc/xgboost4j/java/example/GeneralizedLinearModel.java
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@ -32,8 +32,8 @@ import ml.dmlc.xgboost4j.java.example.util.CustomEval;
public class GeneralizedLinearModel { public class GeneralizedLinearModel {
public static void main(String[] args) throws XGBoostError { public static void main(String[] args) throws XGBoostError {
// load file from text file, also binary buffer generated by xgboost4j // load file from text file, also binary buffer generated by xgboost4j
DMatrix trainMat = new DMatrix("../../demo/data/agaricus.txt.train"); DMatrix trainMat = new DMatrix("../../demo/data/agaricus.txt.train?format=libsvm");
DMatrix testMat = new DMatrix("../../demo/data/agaricus.txt.test"); DMatrix testMat = new DMatrix("../../demo/data/agaricus.txt.test?format=libsvm");
//specify parameters //specify parameters
//change booster to gblinear, so that we are fitting a linear model //change booster to gblinear, so that we are fitting a linear model

4
jvm-packages/xgboost4j-example/src/main/java/ml/dmlc/xgboost4j/java/example/PredictFirstNtree.java
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@ -31,8 +31,8 @@ import ml.dmlc.xgboost4j.java.example.util.CustomEval;
public class PredictFirstNtree { public class PredictFirstNtree {
public static void main(String[] args) throws XGBoostError { public static void main(String[] args) throws XGBoostError {
// load file from text file, also binary buffer generated by xgboost4j // load file from text file, also binary buffer generated by xgboost4j
DMatrix trainMat = new DMatrix("../../demo/data/agaricus.txt.train"); DMatrix trainMat = new DMatrix("../../demo/data/agaricus.txt.train?format=libsvm");
DMatrix testMat = new DMatrix("../../demo/data/agaricus.txt.test"); DMatrix testMat = new DMatrix("../../demo/data/agaricus.txt.test?format=libsvm");
//specify parameters //specify parameters
HashMap<String, Object> params = new HashMap<String, Object>(); HashMap<String, Object> params = new HashMap<String, Object>();

4
jvm-packages/xgboost4j-example/src/main/java/ml/dmlc/xgboost4j/java/example/PredictLeafIndices.java
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@ -31,8 +31,8 @@ import ml.dmlc.xgboost4j.java.XGBoostError;
public class PredictLeafIndices { public class PredictLeafIndices {
public static void main(String[] args) throws XGBoostError { public static void main(String[] args) throws XGBoostError {
// load file from text file, also binary buffer generated by xgboost4j // load file from text file, also binary buffer generated by xgboost4j
DMatrix trainMat = new DMatrix("../../demo/data/agaricus.txt.train"); DMatrix trainMat = new DMatrix("../../demo/data/agaricus.txt.train?format=libsvm");
DMatrix testMat = new DMatrix("../../demo/data/agaricus.txt.test"); DMatrix testMat = new DMatrix("../../demo/data/agaricus.txt.test?format=libsvm");
//specify parameters //specify parameters
HashMap<String, Object> params = new HashMap<String, Object>(); HashMap<String, Object> params = new HashMap<String, Object>();

8
jvm-packages/xgboost4j-example/src/main/scala/ml/dmlc/xgboost4j/scala/example/BasicWalkThrough.scala
View File

@ -1,5 +1,5 @@
/* /*
Copyright (c) 2014 by Contributors Copyright (c) 2014-2023 by Contributors
Licensed under the Apache License, Version 2.0 (the "License"); Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License. you may not use this file except in compliance with the License.
@ -36,8 +36,8 @@ object BasicWalkThrough {
} }
def main(args: Array[String]): Unit = { def main(args: Array[String]): Unit = {
val trainMax = new DMatrix("../../demo/data/agaricus.txt.train") val trainMax = new DMatrix("../../demo/data/agaricus.txt.train?format=libsvm")
val testMax = new DMatrix("../../demo/data/agaricus.txt.test") val testMax = new DMatrix("../../demo/data/agaricus.txt.test?format=libsvm")
val params = new mutable.HashMap[String, Any]() val params = new mutable.HashMap[String, Any]()
params += "eta" -> 1.0 params += "eta" -> 1.0
@ -76,7 +76,7 @@ object BasicWalkThrough {
// build dmatrix from CSR Sparse Matrix // build dmatrix from CSR Sparse Matrix
println("start build dmatrix from csr sparse data ...") println("start build dmatrix from csr sparse data ...")
val spData = DataLoader.loadSVMFile("../../demo/data/agaricus.txt.train") val spData = DataLoader.loadSVMFile("../../demo/data/agaricus.txt.train?format=libsvm")
val trainMax2 = new DMatrix(spData.rowHeaders, spData.colIndex, spData.data, val trainMax2 = new DMatrix(spData.rowHeaders, spData.colIndex, spData.data,
JDMatrix.SparseType.CSR) JDMatrix.SparseType.CSR)
trainMax2.setLabel(spData.labels) trainMax2.setLabel(spData.labels)

4
jvm-packages/xgboost4j-example/src/main/scala/ml/dmlc/xgboost4j/scala/example/BoostFromPrediction.scala
View File

@ -24,8 +24,8 @@ object BoostFromPrediction {
def main(args: Array[String]): Unit = { def main(args: Array[String]): Unit = {
println("start running example to start from a initial prediction") println("start running example to start from a initial prediction")
val trainMat = new DMatrix("../../demo/data/agaricus.txt.train") val trainMat = new DMatrix("../../demo/data/agaricus.txt.train?format=libsvm")
val testMat = new DMatrix("../../demo/data/agaricus.txt.test") val testMat = new DMatrix("../../demo/data/agaricus.txt.test?format=libsvm")
val params = new mutable.HashMap[String, Any]() val params = new mutable.HashMap[String, Any]()
params += "eta" -> 1.0 params += "eta" -> 1.0

2
jvm-packages/xgboost4j-example/src/main/scala/ml/dmlc/xgboost4j/scala/example/CrossValidation.scala
View File

@ -21,7 +21,7 @@ import ml.dmlc.xgboost4j.scala.{XGBoost, DMatrix}
object CrossValidation { object CrossValidation {
def main(args: Array[String]): Unit = { def main(args: Array[String]): Unit = {
val trainMat: DMatrix = new DMatrix("../../demo/data/agaricus.txt.train") val trainMat: DMatrix = new DMatrix("../../demo/data/agaricus.txt.train?format=libsvm")
// set params // set params
val params = new mutable.HashMap[String, Any] val params = new mutable.HashMap[String, Any]

4
jvm-packages/xgboost4j-example/src/main/scala/ml/dmlc/xgboost4j/scala/example/CustomObjective.scala
View File

@ -138,8 +138,8 @@ object CustomObjective {
} }
def main(args: Array[String]): Unit = { def main(args: Array[String]): Unit = {
val trainMat = new DMatrix("../../demo/data/agaricus.txt.train") val trainMat = new DMatrix("../../demo/data/agaricus.txt.train?format=libsvm")
val testMat = new DMatrix("../../demo/data/agaricus.txt.test") val testMat = new DMatrix("../../demo/data/agaricus.txt.test?format=libsvm")
val params = new mutable.HashMap[String, Any]() val params = new mutable.HashMap[String, Any]()
params += "eta" -> 1.0 params += "eta" -> 1.0
params += "max_depth" -> 2 params += "max_depth" -> 2

4
jvm-packages/xgboost4j-example/src/main/scala/ml/dmlc/xgboost4j/scala/example/ExternalMemory.scala
View File

@ -25,8 +25,8 @@ object ExternalMemory {
// this is the only difference, add a # followed by a cache prefix name // this is the only difference, add a # followed by a cache prefix name
// several cache file with the prefix will be generated // several cache file with the prefix will be generated
// currently only support convert from libsvm file // currently only support convert from libsvm file
val trainMat = new DMatrix("../../demo/data/agaricus.txt.train#dtrain.cache") val trainMat = new DMatrix("../../demo/data/agaricus.txt.train?format=libsvm#dtrain.cache")
val testMat = new DMatrix("../../demo/data/agaricus.txt.test#dtest.cache") val testMat = new DMatrix("../../demo/data/agaricus.txt.test?format=libsvm#dtest.cache")
val params = new mutable.HashMap[String, Any]() val params = new mutable.HashMap[String, Any]()
params += "eta" -> 1.0 params += "eta" -> 1.0

4
jvm-packages/xgboost4j-example/src/main/scala/ml/dmlc/xgboost4j/scala/example/GeneralizedLinearModel.scala
View File

@ -27,8 +27,8 @@ import ml.dmlc.xgboost4j.scala.example.util.CustomEval
*/ */
object GeneralizedLinearModel { object GeneralizedLinearModel {
def main(args: Array[String]): Unit = { def main(args: Array[String]): Unit = {
val trainMat = new DMatrix("../../demo/data/agaricus.txt.train") val trainMat = new DMatrix("../../demo/data/agaricus.txt.train?format=libsvm")
val testMat = new DMatrix("../../demo/data/agaricus.txt.test") val testMat = new DMatrix("../../demo/data/agaricus.txt.test?format=libsvm")
// specify parameters // specify parameters
// change booster to gblinear, so that we are fitting a linear model // change booster to gblinear, so that we are fitting a linear model

4
jvm-packages/xgboost4j-example/src/main/scala/ml/dmlc/xgboost4j/scala/example/PredictFirstNTree.scala
View File

@ -23,8 +23,8 @@ import ml.dmlc.xgboost4j.scala.{XGBoost, DMatrix}
object PredictFirstNTree { object PredictFirstNTree {
def main(args: Array[String]): Unit = { def main(args: Array[String]): Unit = {
val trainMat = new DMatrix("../../demo/data/agaricus.txt.train") val trainMat = new DMatrix("../../demo/data/agaricus.txt.train?format=libsvm")
val testMat = new DMatrix("../../demo/data/agaricus.txt.test") val testMat = new DMatrix("../../demo/data/agaricus.txt.test?format=libsvm")
val params = new mutable.HashMap[String, Any]() val params = new mutable.HashMap[String, Any]()
params += "eta" -> 1.0 params += "eta" -> 1.0

4
jvm-packages/xgboost4j-example/src/main/scala/ml/dmlc/xgboost4j/scala/example/PredictLeafIndices.scala
View File

@ -25,8 +25,8 @@ import ml.dmlc.xgboost4j.scala.{XGBoost, DMatrix}
object PredictLeafIndices { object PredictLeafIndices {
def main(args: Array[String]): Unit = { def main(args: Array[String]): Unit = {
val trainMat = new DMatrix("../../demo/data/agaricus.txt.train") val trainMat = new DMatrix("../../demo/data/agaricus.txt.train?format=libsvm")
val testMat = new DMatrix("../../demo/data/agaricus.txt.test") val testMat = new DMatrix("../../demo/data/agaricus.txt.test?format=libsvm")
val params = new mutable.HashMap[String, Any]() val params = new mutable.HashMap[String, Any]()
params += "eta" -> 1.0 params += "eta" -> 1.0

4
jvm-packages/xgboost4j/src/test/java/ml/dmlc/xgboost4j/java/BoosterImplTest.java
View File

@ -30,8 +30,8 @@ import org.junit.Test;
* @author hzx * @author hzx
*/ */
public class BoosterImplTest { public class BoosterImplTest {
private String train_uri = "../../demo/data/agaricus.txt.train?indexing_mode=1"; private String train_uri = "../../demo/data/agaricus.txt.train?indexing_mode=1&format=libsvm";
private String test_uri = "../../demo/data/agaricus.txt.test?indexing_mode=1"; private String test_uri = "../../demo/data/agaricus.txt.test?indexing_mode=1&format=libsvm";
public static class EvalError implements IEvaluation { public static class EvalError implements IEvaluation {
@Override @Override

4
jvm-packages/xgboost4j/src/test/java/ml/dmlc/xgboost4j/java/DMatrixTest.java
View File

@ -4,7 +4,7 @@
Licensed under the Apache License, Version 2.0 (the "License"); Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License. you may not use this file except in compliance with the License.
You may obtain a copy of the License at You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0 http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software Unless required by applicable law or agreed to in writing, software
@ -88,7 +88,7 @@ public class DMatrixTest {
public void testCreateFromFile() throws XGBoostError { public void testCreateFromFile() throws XGBoostError {
//create DMatrix from file //create DMatrix from file
String filePath = writeResourceIntoTempFile("/agaricus.txt.test"); String filePath = writeResourceIntoTempFile("/agaricus.txt.test");
DMatrix dmat = new DMatrix(filePath); DMatrix dmat = new DMatrix(filePath + "?format=libsvm");
//get label //get label
float[] labels = dmat.getLabel(); float[] labels = dmat.getLabel();
//check length //check length

2
jvm-packages/xgboost4j/src/test/scala/ml/dmlc/xgboost4j/scala/DMatrixSuite.scala
View File

@ -25,7 +25,7 @@ import ml.dmlc.xgboost4j.java.{DMatrix => JDMatrix}
class DMatrixSuite extends AnyFunSuite { class DMatrixSuite extends AnyFunSuite {
test("create DMatrix from File") { test("create DMatrix from File") {
val dmat = new DMatrix("../../demo/data/agaricus.txt.test") val dmat = new DMatrix("../../demo/data/agaricus.txt.test?format=libsvm")
// get label // get label
val labels: Array[Float] = dmat.getLabel val labels: Array[Float] = dmat.getLabel
// check length // check length

40
jvm-packages/xgboost4j/src/test/scala/ml/dmlc/xgboost4j/scala/ScalaBoosterImplSuite.scala
View File

@ -95,8 +95,8 @@ class ScalaBoosterImplSuite extends AnyFunSuite {
} }
test("basic operation of booster") { test("basic operation of booster") {
val trainMat = new DMatrix("../../demo/data/agaricus.txt.train") val trainMat = new DMatrix("../../demo/data/agaricus.txt.train?format=libsvm")
val testMat = new DMatrix("../../demo/data/agaricus.txt.test") val testMat = new DMatrix("../../demo/data/agaricus.txt.test?format=libsvm")
val booster = trainBooster(trainMat, testMat) val booster = trainBooster(trainMat, testMat)
val predicts = booster.predict(testMat, true) val predicts = booster.predict(testMat, true)
@ -106,8 +106,8 @@ class ScalaBoosterImplSuite extends AnyFunSuite {
test("save/load model with path") { test("save/load model with path") {
val trainMat = new DMatrix("../../demo/data/agaricus.txt.train") val trainMat = new DMatrix("../../demo/data/agaricus.txt.train?format=libsvm")
val testMat = new DMatrix("../../demo/data/agaricus.txt.test") val testMat = new DMatrix("../../demo/data/agaricus.txt.test?format=libsvm")
val eval = new EvalError val eval = new EvalError
val booster = trainBooster(trainMat, testMat) val booster = trainBooster(trainMat, testMat)
// save and load // save and load
@ -123,8 +123,8 @@ class ScalaBoosterImplSuite extends AnyFunSuite {
} }
test("save/load model with stream") { test("save/load model with stream") {
val trainMat = new DMatrix("../../demo/data/agaricus.txt.train") val trainMat = new DMatrix("../../demo/data/agaricus.txt.train?format=libsvm")
val testMat = new DMatrix("../../demo/data/agaricus.txt.test") val testMat = new DMatrix("../../demo/data/agaricus.txt.test?format=libsvm")
val eval = new EvalError val eval = new EvalError
val booster = trainBooster(trainMat, testMat) val booster = trainBooster(trainMat, testMat)
// save and load // save and load
@ -139,7 +139,7 @@ class ScalaBoosterImplSuite extends AnyFunSuite {
} }
test("cross validation") { test("cross validation") {
val trainMat = new DMatrix("../../demo/data/agaricus.txt.train") val trainMat = new DMatrix("../../demo/data/agaricus.txt.train?format=libsvm")
val params = List("eta" -> "1.0", "max_depth" -> "3", "silent" -> "1", "nthread" -> "6", val params = List("eta" -> "1.0", "max_depth" -> "3", "silent" -> "1", "nthread" -> "6",
"objective" -> "binary:logistic", "gamma" -> "1.0", "eval_metric" -> "error").toMap "objective" -> "binary:logistic", "gamma" -> "1.0", "eval_metric" -> "error").toMap
val round = 2 val round = 2
@ -148,8 +148,8 @@ class ScalaBoosterImplSuite extends AnyFunSuite {
} }
test("test with quantile histo depthwise") { test("test with quantile histo depthwise") {
val trainMat = new DMatrix("../../demo/data/agaricus.txt.train") val trainMat = new DMatrix("../../demo/data/agaricus.txt.train?format=libsvm")
val testMat = new DMatrix("../../demo/data/agaricus.txt.test") val testMat = new DMatrix("../../demo/data/agaricus.txt.test?format=libsvm")
val paramMap = List("max_depth" -> "3", "silent" -> "0", val paramMap = List("max_depth" -> "3", "silent" -> "0",
"objective" -> "binary:logistic", "tree_method" -> "hist", "objective" -> "binary:logistic", "tree_method" -> "hist",
"grow_policy" -> "depthwise", "eval_metric" -> "auc").toMap "grow_policy" -> "depthwise", "eval_metric" -> "auc").toMap
@ -158,8 +158,8 @@ class ScalaBoosterImplSuite extends AnyFunSuite {
} }
test("test with quantile histo lossguide") { test("test with quantile histo lossguide") {
val trainMat = new DMatrix("../../demo/data/agaricus.txt.train") val trainMat = new DMatrix("../../demo/data/agaricus.txt.train?format=libsvm")
val testMat = new DMatrix("../../demo/data/agaricus.txt.test") val testMat = new DMatrix("../../demo/data/agaricus.txt.test?format=libsvm")
val paramMap = List("max_depth" -> "3", "silent" -> "0", val paramMap = List("max_depth" -> "3", "silent" -> "0",
"objective" -> "binary:logistic", "tree_method" -> "hist", "objective" -> "binary:logistic", "tree_method" -> "hist",
"grow_policy" -> "lossguide", "max_leaves" -> "8", "eval_metric" -> "auc").toMap "grow_policy" -> "lossguide", "max_leaves" -> "8", "eval_metric" -> "auc").toMap
@ -168,8 +168,8 @@ class ScalaBoosterImplSuite extends AnyFunSuite {
} }
test("test with quantile histo lossguide with max bin") { test("test with quantile histo lossguide with max bin") {
val trainMat = new DMatrix("../../demo/data/agaricus.txt.train") val trainMat = new DMatrix("../../demo/data/agaricus.txt.train?format=libsvm")
val testMat = new DMatrix("../../demo/data/agaricus.txt.test") val testMat = new DMatrix("../../demo/data/agaricus.txt.test?format=libsvm")
val paramMap = List("max_depth" -> "3", "silent" -> "0", val paramMap = List("max_depth" -> "3", "silent" -> "0",
"objective" -> "binary:logistic", "tree_method" -> "hist", "objective" -> "binary:logistic", "tree_method" -> "hist",
"grow_policy" -> "lossguide", "max_leaves" -> "8", "max_bin" -> "16", "grow_policy" -> "lossguide", "max_leaves" -> "8", "max_bin" -> "16",
@ -179,8 +179,8 @@ class ScalaBoosterImplSuite extends AnyFunSuite {
} }
test("test with quantile histo depthwidth with max depth") { test("test with quantile histo depthwidth with max depth") {
val trainMat = new DMatrix("../../demo/data/agaricus.txt.train") val trainMat = new DMatrix("../../demo/data/agaricus.txt.train?format=libsvm")
val testMat = new DMatrix("../../demo/data/agaricus.txt.test") val testMat = new DMatrix("../../demo/data/agaricus.txt.test?format=libsvm")
val paramMap = List("max_depth" -> "0", "silent" -> "0", val paramMap = List("max_depth" -> "0", "silent" -> "0",
"objective" -> "binary:logistic", "tree_method" -> "hist", "objective" -> "binary:logistic", "tree_method" -> "hist",
"grow_policy" -> "depthwise", "max_leaves" -> "8", "max_depth" -> "2", "grow_policy" -> "depthwise", "max_leaves" -> "8", "max_depth" -> "2",
@ -190,8 +190,8 @@ class ScalaBoosterImplSuite extends AnyFunSuite {
} }
test("test with quantile histo depthwidth with max depth and max bin") { test("test with quantile histo depthwidth with max depth and max bin") {
val trainMat = new DMatrix("../../demo/data/agaricus.txt.train") val trainMat = new DMatrix("../../demo/data/agaricus.txt.train?format=libsvm")
val testMat = new DMatrix("../../demo/data/agaricus.txt.test") val testMat = new DMatrix("../../demo/data/agaricus.txt.test?format=libsvm")
val paramMap = List("max_depth" -> "0", "silent" -> "0", val paramMap = List("max_depth" -> "0", "silent" -> "0",
"objective" -> "binary:logistic", "tree_method" -> "hist", "objective" -> "binary:logistic", "tree_method" -> "hist",
"grow_policy" -> "depthwise", "max_depth" -> "2", "max_bin" -> "2", "grow_policy" -> "depthwise", "max_depth" -> "2", "max_bin" -> "2",
@ -201,7 +201,7 @@ class ScalaBoosterImplSuite extends AnyFunSuite {
} }
test("test training from existing model in scala") { test("test training from existing model in scala") {
val trainMat = new DMatrix("../../demo/data/agaricus.txt.train") val trainMat = new DMatrix("../../demo/data/agaricus.txt.train?format=libsvm")
val paramMap = List("max_depth" -> "0", "silent" -> "0", val paramMap = List("max_depth" -> "0", "silent" -> "0",
"objective" -> "binary:logistic", "tree_method" -> "hist", "objective" -> "binary:logistic", "tree_method" -> "hist",
"grow_policy" -> "depthwise", "max_depth" -> "2", "max_bin" -> "2", "grow_policy" -> "depthwise", "max_depth" -> "2", "max_bin" -> "2",
@ -213,8 +213,8 @@ class ScalaBoosterImplSuite extends AnyFunSuite {
} }
test("test getting number of features from a booster") { test("test getting number of features from a booster") {
val trainMat = new DMatrix("../../demo/data/agaricus.txt.train") val trainMat = new DMatrix("../../demo/data/agaricus.txt.train?format=libsvm")
val testMat = new DMatrix("../../demo/data/agaricus.txt.test") val testMat = new DMatrix("../../demo/data/agaricus.txt.test?format=libsvm")
val booster = trainBooster(trainMat, testMat) val booster = trainBooster(trainMat, testMat)
TestCase.assertEquals(booster.getNumFeature, 127) TestCase.assertEquals(booster.getNumFeature, 127)

7
python-package/xgboost/testing/__init__.py
View File

@ -882,5 +882,12 @@ def data_dir(path: str) -> str:
return os.path.join(demo_dir(path), "data") return os.path.join(demo_dir(path), "data")
def load_agaricus(path: str) -> Tuple[xgb.DMatrix, xgb.DMatrix]:
dpath = data_dir(path)
dtrain = xgb.DMatrix(os.path.join(dpath, "agaricus.txt.train?format=libsvm"))
dtest = xgb.DMatrix(os.path.join(dpath, "agaricus.txt.test?format=libsvm"))
return dtrain, dtest
def project_root(path: str) -> str: def project_root(path: str) -> str:
return normpath(os.path.join(demo_dir(path), os.path.pardir)) return normpath(os.path.join(demo_dir(path), os.path.pardir))

68
src/data/data.cc
View File

@ -819,8 +819,7 @@ DMatrix *TryLoadBinary(std::string fname, bool silent) {
return nullptr; return nullptr;
} }
DMatrix* DMatrix::Load(const std::string& uri, bool silent, DataSplitMode data_split_mode, DMatrix* DMatrix::Load(const std::string& uri, bool silent, DataSplitMode data_split_mode) {
const std::string& file_format) {
auto need_split = false; auto need_split = false;
if (collective::IsFederated()) { if (collective::IsFederated()) {
LOG(CONSOLE) << "XGBoost federated mode detected, not splitting data among workers"; LOG(CONSOLE) << "XGBoost federated mode detected, not splitting data among workers";
@ -862,11 +861,9 @@ DMatrix* DMatrix::Load(const std::string& uri, bool silent, DataSplitMode data_s
} }
// legacy handling of binary data loading // legacy handling of binary data loading
if (file_format == "auto") { DMatrix* loaded = TryLoadBinary(fname, silent);
DMatrix* loaded = TryLoadBinary(fname, silent); if (loaded) {
if (loaded) { return loaded;
return loaded;
}
} }
int partid = 0, npart = 1; int partid = 0, npart = 1;
@ -882,47 +879,24 @@ DMatrix* DMatrix::Load(const std::string& uri, bool silent, DataSplitMode data_s
LOG(CONSOLE) << "Load part of data " << partid << " of " << npart << " parts"; LOG(CONSOLE) << "Load part of data " << partid << " of " << npart << " parts";
} }
data::ValidateFileFormat(fname);
DMatrix* dmat {nullptr}; DMatrix* dmat {nullptr};
try {
if (cache_file.empty()) { if (cache_file.empty()) {
std::unique_ptr<dmlc::Parser<uint32_t>> parser( std::unique_ptr<dmlc::Parser<uint32_t>> parser(
dmlc::Parser<uint32_t>::Create(fname.c_str(), partid, npart, file_format.c_str())); dmlc::Parser<uint32_t>::Create(fname.c_str(), partid, npart, "auto"));
data::FileAdapter adapter(parser.get()); data::FileAdapter adapter(parser.get());
dmat = DMatrix::Create(&adapter, std::numeric_limits<float>::quiet_NaN(), Context{}.Threads(), dmat = DMatrix::Create(&adapter, std::numeric_limits<float>::quiet_NaN(), Context{}.Threads(),
cache_file, data_split_mode); cache_file, data_split_mode);
} else { } else {
data::FileIterator iter{fname, static_cast<uint32_t>(partid), static_cast<uint32_t>(npart), data::FileIterator iter{fname, static_cast<uint32_t>(partid), static_cast<uint32_t>(npart)};
file_format}; dmat = new data::SparsePageDMatrix{&iter,
dmat = new data::SparsePageDMatrix{&iter, iter.Proxy(),
iter.Proxy(), data::fileiter::Reset,
data::fileiter::Reset, data::fileiter::Next,
data::fileiter::Next, std::numeric_limits<float>::quiet_NaN(),
std::numeric_limits<float>::quiet_NaN(), 1,
1, cache_file};
cache_file};
}
} catch (dmlc::Error& e) {
std::vector<std::string> splited = common::Split(fname, '#');
std::vector<std::string> args = common::Split(splited.front(), '?');
std::string format {file_format};
if (args.size() == 1 && file_format == "auto") {
auto extension = common::Split(args.front(), '.').back();
if (extension == "csv" || extension == "libsvm") {
format = extension;
}
if (format == extension) {
LOG(WARNING)
<< "No format parameter is provided in input uri, but found file extension: "
<< format << " . "
<< "Consider providing a uri parameter: filename?format=" << format;
} else {
LOG(WARNING)
<< "No format parameter is provided in input uri. "
<< "Choosing default parser in dmlc-core. "
<< "Consider providing a uri parameter like: filename?format=csv";
}
}
LOG(FATAL) << "Encountered parser error:\n" << e.what();
} }
if (need_split && data_split_mode == DataSplitMode::kCol) { if (need_split && data_split_mode == DataSplitMode::kCol) {

51
src/data/file_iterator.h
View File

@ -1,22 +1,50 @@
/*! /**
* Copyright 2021 XGBoost contributors * Copyright 2021-2023, XGBoost contributors
*/ */
#ifndef XGBOOST_DATA_FILE_ITERATOR_H_ #ifndef XGBOOST_DATA_FILE_ITERATOR_H_
#define XGBOOST_DATA_FILE_ITERATOR_H_ #define XGBOOST_DATA_FILE_ITERATOR_H_
#include <string> #include <map>
#include <memory> #include <memory>
#include <vector> #include <string>
#include <utility> #include <utility>
#include <vector>
#include "array_interface.h"
#include "dmlc/data.h" #include "dmlc/data.h"
#include "xgboost/c_api.h" #include "xgboost/c_api.h"
#include "xgboost/json.h" #include "xgboost/json.h"
#include "xgboost/linalg.h" #include "xgboost/linalg.h"
#include "array_interface.h"
namespace xgboost { namespace xgboost {
namespace data { namespace data {
inline void ValidateFileFormat(std::string const& uri) {
std::vector<std::string> name_cache = common::Split(uri, '#');
CHECK_LE(name_cache.size(), 2)
<< "Only one `#` is allowed in file path for cachefile specification";
std::vector<std::string> name_args = common::Split(name_cache[0], '?');
CHECK_LE(name_args.size(), 2) << "only one `?` is allowed in file path.";
StringView msg{"URI parameter `format` is required for loading text data: filename?format=csv"};
CHECK_EQ(name_args.size(), 2) << msg;
std::map<std::string, std::string> args;
std::vector<std::string> arg_list = common::Split(name_args[1], '&');
for (size_t i = 0; i < arg_list.size(); ++i) {
std::istringstream is(arg_list[i]);
std::pair<std::string, std::string> kv;
CHECK(std::getline(is, kv.first, '=')) << "Invalid uri argument format"
<< " for key in arg " << i + 1;
CHECK(std::getline(is, kv.second)) << "Invalid uri argument format"
<< " for value in arg " << i + 1;
args.insert(kv);
}
if (args.find("format") == args.cend()) {
LOG(FATAL) << msg;
}
}
/** /**
* An iterator for implementing external memory support with file inputs. Users of * An iterator for implementing external memory support with file inputs. Users of
* external memory are encouraged to define their own file parsers/loaders so this one is * external memory are encouraged to define their own file parsers/loaders so this one is
@ -31,8 +59,6 @@ class FileIterator {
uint32_t part_idx_; uint32_t part_idx_;
// Equals to total number of workers. // Equals to total number of workers.
uint32_t n_parts_; uint32_t n_parts_;
// Format of the input file, like "libsvm".
std::string type_;
DMatrixHandle proxy_; DMatrixHandle proxy_;
@ -45,10 +71,9 @@ class FileIterator {
std::string indices_; std::string indices_;
public: public:
FileIterator(std::string uri, unsigned part_index, unsigned num_parts, FileIterator(std::string uri, unsigned part_index, unsigned num_parts)
std::string type) : uri_{std::move(uri)}, part_idx_{part_index}, n_parts_{num_parts} {
: uri_{std::move(uri)}, part_idx_{part_index}, n_parts_{num_parts}, ValidateFileFormat(uri_);
type_{std::move(type)} {
XGProxyDMatrixCreate(&proxy_); XGProxyDMatrixCreate(&proxy_);
} }
~FileIterator() { ~FileIterator() {
@ -94,9 +119,7 @@ class FileIterator {
auto Proxy() -> decltype(proxy_) { return proxy_; } auto Proxy() -> decltype(proxy_) { return proxy_; }
void Reset() { void Reset() {
CHECK(!type_.empty()); parser_.reset(dmlc::Parser<uint32_t>::Create(uri_.c_str(), part_idx_, n_parts_, "auto"));
parser_.reset(dmlc::Parser<uint32_t>::Create(uri_.c_str(), part_idx_,
n_parts_, type_.c_str()));
} }
}; };

3
tests/cpp/common/test_hist_util.h
View File

@ -88,7 +88,8 @@ inline std::shared_ptr<DMatrix> GetExternalMemoryDMatrixFromData(
fo << row_data.str() << "\n"; fo << row_data.str() << "\n";
} }
fo.close(); fo.close();
return std::shared_ptr<DMatrix>(DMatrix::Load(tmp_file + "#" + tmp_file + ".cache")); return std::shared_ptr<DMatrix>(
DMatrix::Load(tmp_file + "?format=libsvm" + "#" + tmp_file + ".cache"));
} }
// Test that elements are approximately equally distributed among bins // Test that elements are approximately equally distributed among bins

8
tests/cpp/data/test_file_iterator.cc
View File

@ -29,16 +29,16 @@ TEST(FileIterator, Basic) {
{ {
auto zpath = tmpdir.path + "/0-based.svm"; auto zpath = tmpdir.path + "/0-based.svm";
CreateBigTestData(zpath, 3 * 64, true); CreateBigTestData(zpath, 3 * 64, true);
zpath += "?indexing_mode=0"; zpath += "?indexing_mode=0&format=libsvm";
FileIterator iter{zpath, 0, 1, "libsvm"}; FileIterator iter{zpath, 0, 1};
check_n_features(&iter); check_n_features(&iter);
} }
{ {
auto opath = tmpdir.path + "/1-based.svm"; auto opath = tmpdir.path + "/1-based.svm";
CreateBigTestData(opath, 3 * 64, false); CreateBigTestData(opath, 3 * 64, false);
opath += "?indexing_mode=1"; opath += "?indexing_mode=1&format=libsvm";
FileIterator iter{opath, 0, 1, "libsvm"}; FileIterator iter{opath, 0, 1};
check_n_features(&iter); check_n_features(&iter);
} }
} }

5
tests/cpp/data/test_metainfo.cc
View File

@ -157,8 +157,7 @@ TEST(MetaInfo, LoadQid) {
dmlc::TemporaryDirectory tempdir; dmlc::TemporaryDirectory tempdir;
std::string tmp_file = tempdir.path + "/qid_test.libsvm"; std::string tmp_file = tempdir.path + "/qid_test.libsvm";
{ {
std::unique_ptr<dmlc::Stream> fs( std::unique_ptr<dmlc::Stream> fs(dmlc::Stream::Create(tmp_file.c_str(), "w"));
dmlc::Stream::Create(tmp_file.c_str(), "w"));
dmlc::ostream os(fs.get()); dmlc::ostream os(fs.get());
os << R"qid(3 qid:1 1:1 2:1 3:0 4:0.2 5:0 os << R"qid(3 qid:1 1:1 2:1 3:0 4:0.2 5:0
2 qid:1 1:0 2:0 3:1 4:0.1 5:1 2 qid:1 1:0 2:0 3:1 4:0.1 5:1
@ -175,7 +174,7 @@ TEST(MetaInfo, LoadQid) {
os.set_stream(nullptr); os.set_stream(nullptr);
} }
std::unique_ptr<xgboost::DMatrix> dmat( std::unique_ptr<xgboost::DMatrix> dmat(
xgboost::DMatrix::Load(tmp_file, true, xgboost::DataSplitMode::kRow, "libsvm")); xgboost::DMatrix::Load(tmp_file + "?format=libsvm", true, xgboost::DataSplitMode::kRow));
const xgboost::MetaInfo& info = dmat->Info(); const xgboost::MetaInfo& info = dmat->Info();
const std::vector<xgboost::bst_uint> expected_group_ptr{0, 4, 8, 12}; const std::vector<xgboost::bst_uint> expected_group_ptr{0, 4, 8, 12};

12
tests/cpp/data/test_simple_dmatrix.cc
View File

@ -17,11 +17,15 @@
using namespace xgboost; // NOLINT using namespace xgboost; // NOLINT
namespace {
std::string UriSVM(std::string name) { return name + "?format=libsvm"; }
} // namespace
TEST(SimpleDMatrix, MetaInfo) { TEST(SimpleDMatrix, MetaInfo) {
dmlc::TemporaryDirectory tempdir; dmlc::TemporaryDirectory tempdir;
const std::string tmp_file = tempdir.path + "/simple.libsvm"; const std::string tmp_file = tempdir.path + "/simple.libsvm";
CreateSimpleTestData(tmp_file); CreateSimpleTestData(tmp_file);
xgboost::DMatrix *dmat = xgboost::DMatrix::Load(tmp_file); xgboost::DMatrix *dmat = xgboost::DMatrix::Load(UriSVM(tmp_file));
// Test the metadata that was parsed // Test the metadata that was parsed
EXPECT_EQ(dmat->Info().num_row_, 2); EXPECT_EQ(dmat->Info().num_row_, 2);
@ -37,7 +41,7 @@ TEST(SimpleDMatrix, RowAccess) {
dmlc::TemporaryDirectory tempdir; dmlc::TemporaryDirectory tempdir;
const std::string tmp_file = tempdir.path + "/simple.libsvm"; const std::string tmp_file = tempdir.path + "/simple.libsvm";
CreateSimpleTestData(tmp_file); CreateSimpleTestData(tmp_file);
xgboost::DMatrix *dmat = xgboost::DMatrix::Load(tmp_file, false); xgboost::DMatrix *dmat = xgboost::DMatrix::Load(UriSVM(tmp_file), false);
// Loop over the batches and count the records // Loop over the batches and count the records
int64_t row_count = 0; int64_t row_count = 0;
@ -60,7 +64,7 @@ TEST(SimpleDMatrix, ColAccessWithoutBatches) {
dmlc::TemporaryDirectory tempdir; dmlc::TemporaryDirectory tempdir;
const std::string tmp_file = tempdir.path + "/simple.libsvm"; const std::string tmp_file = tempdir.path + "/simple.libsvm";
CreateSimpleTestData(tmp_file); CreateSimpleTestData(tmp_file);
xgboost::DMatrix *dmat = xgboost::DMatrix::Load(tmp_file); xgboost::DMatrix *dmat = xgboost::DMatrix::Load(UriSVM(tmp_file));
ASSERT_TRUE(dmat->SingleColBlock()); ASSERT_TRUE(dmat->SingleColBlock());
@ -387,7 +391,7 @@ TEST(SimpleDMatrix, SaveLoadBinary) {
dmlc::TemporaryDirectory tempdir; dmlc::TemporaryDirectory tempdir;
const std::string tmp_file = tempdir.path + "/simple.libsvm"; const std::string tmp_file = tempdir.path + "/simple.libsvm";
CreateSimpleTestData(tmp_file); CreateSimpleTestData(tmp_file);
xgboost::DMatrix * dmat = xgboost::DMatrix::Load(tmp_file); xgboost::DMatrix * dmat = xgboost::DMatrix::Load(UriSVM(tmp_file));
data::SimpleDMatrix *simple_dmat = dynamic_cast<data::SimpleDMatrix*>(dmat); data::SimpleDMatrix *simple_dmat = dynamic_cast<data::SimpleDMatrix*>(dmat);
const std::string tmp_binfile = tempdir.path + "/csr_source.binary"; const std::string tmp_binfile = tempdir.path + "/csr_source.binary";

17
tests/cpp/data/test_sparse_page_dmatrix.cc
View File

@ -16,14 +16,19 @@
#include "../helpers.h" #include "../helpers.h"
using namespace xgboost; // NOLINT using namespace xgboost; // NOLINT
namespace {
std::string UriSVM(std::string name, std::string cache) {
return name + "?format=libsvm" + "#" + cache + ".cache";
}
} // namespace
template <typename Page> template <typename Page>
void TestSparseDMatrixLoadFile() { void TestSparseDMatrixLoadFile() {
dmlc::TemporaryDirectory tmpdir; dmlc::TemporaryDirectory tmpdir;
auto opath = tmpdir.path + "/1-based.svm"; auto opath = tmpdir.path + "/1-based.svm";
CreateBigTestData(opath, 3 * 64, false); CreateBigTestData(opath, 3 * 64, false);
opath += "?indexing_mode=1"; opath += "?indexing_mode=1&format=libsvm";
data::FileIterator iter{opath, 0, 1, "libsvm"}; data::FileIterator iter{opath, 0, 1};
auto n_threads = 0; auto n_threads = 0;
data::SparsePageDMatrix m{&iter, data::SparsePageDMatrix m{&iter,
iter.Proxy(), iter.Proxy(),
@ -112,15 +117,13 @@ TEST(SparsePageDMatrix, MetaInfo) {
size_t constexpr kEntries = 24; size_t constexpr kEntries = 24;
CreateBigTestData(tmp_file, kEntries); CreateBigTestData(tmp_file, kEntries);
xgboost::DMatrix *dmat = xgboost::DMatrix::Load(tmp_file + "#" + tmp_file + ".cache", false); std::unique_ptr<DMatrix> dmat{xgboost::DMatrix::Load(UriSVM(tmp_file, tmp_file), false)};
// Test the metadata that was parsed // Test the metadata that was parsed
EXPECT_EQ(dmat->Info().num_row_, 8ul); EXPECT_EQ(dmat->Info().num_row_, 8ul);
EXPECT_EQ(dmat->Info().num_col_, 5ul); EXPECT_EQ(dmat->Info().num_col_, 5ul);
EXPECT_EQ(dmat->Info().num_nonzero_, kEntries); EXPECT_EQ(dmat->Info().num_nonzero_, kEntries);
EXPECT_EQ(dmat->Info().labels.Size(), dmat->Info().num_row_); EXPECT_EQ(dmat->Info().labels.Size(), dmat->Info().num_row_);
delete dmat;
} }
TEST(SparsePageDMatrix, RowAccess) { TEST(SparsePageDMatrix, RowAccess) {
@ -139,7 +142,7 @@ TEST(SparsePageDMatrix, ColAccess) {
dmlc::TemporaryDirectory tempdir; dmlc::TemporaryDirectory tempdir;
const std::string tmp_file = tempdir.path + "/simple.libsvm"; const std::string tmp_file = tempdir.path + "/simple.libsvm";
CreateSimpleTestData(tmp_file); CreateSimpleTestData(tmp_file);
xgboost::DMatrix *dmat = xgboost::DMatrix::Load(tmp_file + "#" + tmp_file + ".cache"); xgboost::DMatrix *dmat = xgboost::DMatrix::Load(UriSVM(tmp_file, tmp_file));
// Loop over the batches and assert the data is as expected // Loop over the batches and assert the data is as expected
size_t iter = 0; size_t iter = 0;
@ -231,7 +234,7 @@ auto TestSparsePageDMatrixDeterminism(int32_t threads) {
std::string filename = tempdir.path + "/simple.libsvm"; std::string filename = tempdir.path + "/simple.libsvm";
CreateBigTestData(filename, 1 << 16); CreateBigTestData(filename, 1 << 16);
data::FileIterator iter(filename, 0, 1, "auto"); data::FileIterator iter(filename + "?format=libsvm", 0, 1);
std::unique_ptr<DMatrix> sparse{ std::unique_ptr<DMatrix> sparse{
new data::SparsePageDMatrix{&iter, iter.Proxy(), data::fileiter::Reset, data::fileiter::Next, new data::SparsePageDMatrix{&iter, iter.Proxy(), data::fileiter::Reset, data::fileiter::Next,
std::numeric_limits<float>::quiet_NaN(), threads, filename}}; std::numeric_limits<float>::quiet_NaN(), threads, filename}};

2
tests/cpp/data/test_sparse_page_dmatrix.cu
View File

@ -13,7 +13,7 @@ TEST(SparsePageDMatrix, EllpackPage) {
dmlc::TemporaryDirectory tempdir; dmlc::TemporaryDirectory tempdir;
const std::string tmp_file = tempdir.path + "/simple.libsvm"; const std::string tmp_file = tempdir.path + "/simple.libsvm";
CreateSimpleTestData(tmp_file); CreateSimpleTestData(tmp_file);
DMatrix* dmat = DMatrix::Load(tmp_file + "#" + tmp_file + ".cache"); DMatrix* dmat = DMatrix::Load(tmp_file + "?format=libsvm" + "#" + tmp_file + ".cache");
// Loop over the batches and assert the data is as expected // Loop over the batches and assert the data is as expected
size_t n = 0; size_t n = 0;

2
tests/cpp/helpers.cc
View File

@ -548,7 +548,7 @@ std::unique_ptr<DMatrix> CreateSparsePageDMatrixWithRC(
} }
fo.close(); fo.close();
std::string uri = tmp_file; std::string uri = tmp_file + "?format=libsvm";
if (page_size > 0) { if (page_size > 0) {
uri += "#" + tmp_file + ".cache"; uri += "#" + tmp_file + ".cache";
} }

3
tests/cpp/test_learner.cc
View File

@ -126,7 +126,8 @@ TEST(Learner, SLOW_CheckMultiBatch) { // NOLINT
dmlc::TemporaryDirectory tempdir; dmlc::TemporaryDirectory tempdir;
const std::string tmp_file = tempdir.path + "/big.libsvm"; const std::string tmp_file = tempdir.path + "/big.libsvm";
CreateBigTestData(tmp_file, 50000); CreateBigTestData(tmp_file, 50000);
std::shared_ptr<DMatrix> dmat(xgboost::DMatrix::Load(tmp_file + "#" + tmp_file + ".cache")); std::shared_ptr<DMatrix> dmat(
xgboost::DMatrix::Load(tmp_file + "?format=libsvm" + "#" + tmp_file + ".cache"));
EXPECT_FALSE(dmat->SingleColBlock()); EXPECT_FALSE(dmat->SingleColBlock());
size_t num_row = dmat->Info().num_row_; size_t num_row = dmat->Info().num_row_;
std::vector<bst_float> labels(num_row); std::vector<bst_float> labels(num_row);

18
tests/python/test_basic.py
View File

@ -21,8 +21,7 @@ class TestBasic:
assert not lazy_isinstance(a, 'numpy', 'dataframe') assert not lazy_isinstance(a, 'numpy', 'dataframe')
def test_basic(self): def test_basic(self):
dtrain = xgb.DMatrix(dpath + 'agaricus.txt.train') dtrain, dtest = tm.load_agaricus(__file__)
dtest = xgb.DMatrix(dpath + 'agaricus.txt.test')
param = {'max_depth': 2, 'eta': 1, param = {'max_depth': 2, 'eta': 1,
'objective': 'binary:logistic'} 'objective': 'binary:logistic'}
# specify validations set to watch performance # specify validations set to watch performance
@ -61,8 +60,7 @@ class TestBasic:
def test_metric_config(self): def test_metric_config(self):
# Make sure that the metric configuration happens in booster so the # Make sure that the metric configuration happens in booster so the
# string `['error', 'auc']` doesn't get passed down to core. # string `['error', 'auc']` doesn't get passed down to core.
dtrain = xgb.DMatrix(dpath + 'agaricus.txt.train') dtrain, dtest = tm.load_agaricus(__file__)
dtest = xgb.DMatrix(dpath + 'agaricus.txt.test')
param = {'max_depth': 2, 'eta': 1, 'verbosity': 0, param = {'max_depth': 2, 'eta': 1, 'verbosity': 0,
'objective': 'binary:logistic', 'eval_metric': ['error', 'auc']} 'objective': 'binary:logistic', 'eval_metric': ['error', 'auc']}
watchlist = [(dtest, 'eval'), (dtrain, 'train')] watchlist = [(dtest, 'eval'), (dtrain, 'train')]
@ -78,8 +76,7 @@ class TestBasic:
np.testing.assert_allclose(predt_0, predt_1) np.testing.assert_allclose(predt_0, predt_1)
def test_multiclass(self): def test_multiclass(self):
dtrain = xgb.DMatrix(dpath + 'agaricus.txt.train') dtrain, dtest = tm.load_agaricus(__file__)
dtest = xgb.DMatrix(dpath + 'agaricus.txt.test')
param = {'max_depth': 2, 'eta': 1, 'verbosity': 0, 'num_class': 2} param = {'max_depth': 2, 'eta': 1, 'verbosity': 0, 'num_class': 2}
# specify validations set to watch performance # specify validations set to watch performance
watchlist = [(dtest, 'eval'), (dtrain, 'train')] watchlist = [(dtest, 'eval'), (dtrain, 'train')]
@ -188,7 +185,7 @@ class TestBasic:
assert dm.num_col() == cols assert dm.num_col() == cols
def test_cv(self): def test_cv(self):
dm = xgb.DMatrix(dpath + 'agaricus.txt.train') dm, _ = tm.load_agaricus(__file__)
params = {'max_depth': 2, 'eta': 1, 'verbosity': 0, params = {'max_depth': 2, 'eta': 1, 'verbosity': 0,
'objective': 'binary:logistic'} 'objective': 'binary:logistic'}
@ -198,7 +195,7 @@ class TestBasic:
assert len(cv) == (4) assert len(cv) == (4)
def test_cv_no_shuffle(self): def test_cv_no_shuffle(self):
dm = xgb.DMatrix(dpath + 'agaricus.txt.train') dm, _ = tm.load_agaricus(__file__)
params = {'max_depth': 2, 'eta': 1, 'verbosity': 0, params = {'max_depth': 2, 'eta': 1, 'verbosity': 0,
'objective': 'binary:logistic'} 'objective': 'binary:logistic'}
@ -209,7 +206,7 @@ class TestBasic:
assert len(cv) == (4) assert len(cv) == (4)
def test_cv_explicit_fold_indices(self): def test_cv_explicit_fold_indices(self):
dm = xgb.DMatrix(dpath + 'agaricus.txt.train') dm, _ = tm.load_agaricus(__file__)
params = {'max_depth': 2, 'eta': 1, 'verbosity': 0, 'objective': params = {'max_depth': 2, 'eta': 1, 'verbosity': 0, 'objective':
'binary:logistic'} 'binary:logistic'}
folds = [ folds = [
@ -268,8 +265,7 @@ class TestBasicPathLike:
def test_DMatrix_init_from_path(self): def test_DMatrix_init_from_path(self):
"""Initialization from the data path.""" """Initialization from the data path."""
dpath = Path('demo/data') dtrain, _ = tm.load_agaricus(__file__)
dtrain = xgb.DMatrix(dpath / 'agaricus.txt.train')
assert dtrain.num_row() == 6513 assert dtrain.num_row() == 6513
assert dtrain.num_col() == 127 assert dtrain.num_col() == 127

24
tests/python/test_basic_models.py
View File

@ -42,8 +42,7 @@ class TestModels:
param = {'verbosity': 0, 'objective': 'binary:logistic', param = {'verbosity': 0, 'objective': 'binary:logistic',
'booster': 'gblinear', 'alpha': 0.0001, 'lambda': 1, 'booster': 'gblinear', 'alpha': 0.0001, 'lambda': 1,
'nthread': 1} 'nthread': 1}
dtrain = xgb.DMatrix(os.path.join(dpath, "agaricus.txt.train")) dtrain, dtest = tm.load_agaricus(__file__)
dtest = xgb.DMatrix(os.path.join(dpath, "agaricus.txt.test"))
watchlist = [(dtest, 'eval'), (dtrain, 'train')] watchlist = [(dtest, 'eval'), (dtrain, 'train')]
num_round = 4 num_round = 4
bst = xgb.train(param, dtrain, num_round, watchlist) bst = xgb.train(param, dtrain, num_round, watchlist)
@ -55,8 +54,7 @@ class TestModels:
assert err < 0.2 assert err < 0.2
def test_dart(self): def test_dart(self):
dtrain = xgb.DMatrix(os.path.join(dpath, "agaricus.txt.train")) dtrain, dtest = tm.load_agaricus(__file__)
dtest = xgb.DMatrix(os.path.join(dpath, "agaricus.txt.test"))
param = {'max_depth': 5, 'objective': 'binary:logistic', param = {'max_depth': 5, 'objective': 'binary:logistic',
'eval_metric': 'logloss', 'booster': 'dart', 'verbosity': 1} 'eval_metric': 'logloss', 'booster': 'dart', 'verbosity': 1}
# specify validations set to watch performance # specify validations set to watch performance
@ -122,7 +120,7 @@ class TestModels:
def test_boost_from_prediction(self): def test_boost_from_prediction(self):
# Re-construct dtrain here to avoid modification # Re-construct dtrain here to avoid modification
margined = xgb.DMatrix(os.path.join(dpath, "agaricus.txt.train")) margined, _ = tm.load_agaricus(__file__)
bst = xgb.train({'tree_method': 'hist'}, margined, 1) bst = xgb.train({'tree_method': 'hist'}, margined, 1)
predt_0 = bst.predict(margined, output_margin=True) predt_0 = bst.predict(margined, output_margin=True)
margined.set_base_margin(predt_0) margined.set_base_margin(predt_0)
@ -130,13 +128,13 @@ class TestModels:
predt_1 = bst.predict(margined) predt_1 = bst.predict(margined)
assert np.any(np.abs(predt_1 - predt_0) > 1e-6) assert np.any(np.abs(predt_1 - predt_0) > 1e-6)
dtrain = xgb.DMatrix(os.path.join(dpath, "agaricus.txt.train")) dtrain, _ = tm.load_agaricus(__file__)
bst = xgb.train({'tree_method': 'hist'}, dtrain, 2) bst = xgb.train({'tree_method': 'hist'}, dtrain, 2)
predt_2 = bst.predict(dtrain) predt_2 = bst.predict(dtrain)
assert np.all(np.abs(predt_2 - predt_1) < 1e-6) assert np.all(np.abs(predt_2 - predt_1) < 1e-6)
def test_boost_from_existing_model(self): def test_boost_from_existing_model(self):
X = xgb.DMatrix(os.path.join(dpath, "agaricus.txt.train")) X, _ = tm.load_agaricus(__file__)
booster = xgb.train({'tree_method': 'hist'}, X, num_boost_round=4) booster = xgb.train({'tree_method': 'hist'}, X, num_boost_round=4)
assert booster.num_boosted_rounds() == 4 assert booster.num_boosted_rounds() == 4
booster = xgb.train({'tree_method': 'hist'}, X, num_boost_round=4, booster = xgb.train({'tree_method': 'hist'}, X, num_boost_round=4,
@ -156,8 +154,7 @@ class TestModels:
'objective': 'reg:logistic', 'objective': 'reg:logistic',
"tree_method": tree_method "tree_method": tree_method
} }
dtrain = xgb.DMatrix(os.path.join(dpath, "agaricus.txt.train")) dtrain, dtest = tm.load_agaricus(__file__)
dtest = xgb.DMatrix(os.path.join(dpath, "agaricus.txt.test"))
watchlist = [(dtest, 'eval'), (dtrain, 'train')] watchlist = [(dtest, 'eval'), (dtrain, 'train')]
num_round = 10 num_round = 10
@ -203,8 +200,7 @@ class TestModels:
self.run_custom_objective() self.run_custom_objective()
def test_multi_eval_metric(self): def test_multi_eval_metric(self):
dtrain = xgb.DMatrix(os.path.join(dpath, "agaricus.txt.train")) dtrain, dtest = tm.load_agaricus(__file__)
dtest = xgb.DMatrix(os.path.join(dpath, "agaricus.txt.test"))
watchlist = [(dtest, 'eval'), (dtrain, 'train')] watchlist = [(dtest, 'eval'), (dtrain, 'train')]
param = {'max_depth': 2, 'eta': 0.2, 'verbosity': 1, param = {'max_depth': 2, 'eta': 0.2, 'verbosity': 1,
'objective': 'binary:logistic'} 'objective': 'binary:logistic'}
@ -226,7 +222,7 @@ class TestModels:
param['scale_pos_weight'] = ratio param['scale_pos_weight'] = ratio
return (dtrain, dtest, param) return (dtrain, dtest, param)
dtrain = xgb.DMatrix(os.path.join(dpath, "agaricus.txt.train")) dtrain, _ = tm.load_agaricus(__file__)
xgb.cv(param, dtrain, num_round, nfold=5, xgb.cv(param, dtrain, num_round, nfold=5,
metrics={'auc'}, seed=0, fpreproc=fpreproc) metrics={'auc'}, seed=0, fpreproc=fpreproc)
@ -234,7 +230,7 @@ class TestModels:
param = {'max_depth': 2, 'eta': 1, 'verbosity': 0, param = {'max_depth': 2, 'eta': 1, 'verbosity': 0,
'objective': 'binary:logistic'} 'objective': 'binary:logistic'}
num_round = 2 num_round = 2
dtrain = xgb.DMatrix(os.path.join(dpath, "agaricus.txt.train")) dtrain, _ = tm.load_agaricus(__file__)
xgb.cv(param, dtrain, num_round, nfold=5, xgb.cv(param, dtrain, num_round, nfold=5,
metrics={'error'}, seed=0, show_stdv=False) metrics={'error'}, seed=0, show_stdv=False)
@ -392,7 +388,7 @@ class TestModels:
os.remove(model_path) os.remove(model_path)
try: try:
dtrain = xgb.DMatrix(os.path.join(dpath, "agaricus.txt.train")) dtrain, _ = tm.load_agaricus(__file__)
xgb.train({'objective': 'foo'}, dtrain, num_boost_round=1) xgb.train({'objective': 'foo'}, dtrain, num_boost_round=1)
except ValueError as e: except ValueError as e:
e_str = str(e) e_str = str(e)

8
tests/python/test_callback.py
View File

@ -275,9 +275,7 @@ class TestCallbacks:
"""Test learning rate scheduler, used by both CPU and GPU tests.""" """Test learning rate scheduler, used by both CPU and GPU tests."""
scheduler = xgb.callback.LearningRateScheduler scheduler = xgb.callback.LearningRateScheduler
dpath = tm.data_dir(__file__) dtrain, dtest = tm.load_agaricus(__file__)
dtrain = xgb.DMatrix(os.path.join(dpath, "agaricus.txt.train"))
dtest = xgb.DMatrix(os.path.join(dpath, "agaricus.txt.test"))
watchlist = [(dtest, 'eval'), (dtrain, 'train')] watchlist = [(dtest, 'eval'), (dtrain, 'train')]
num_round = 4 num_round = 4
@ -361,9 +359,7 @@ class TestCallbacks:
num_round = 4 num_round = 4
scheduler = xgb.callback.LearningRateScheduler scheduler = xgb.callback.LearningRateScheduler
dpath = tm.data_dir(__file__) dtrain, dtest = tm.load_agaricus(__file__)
dtrain = xgb.DMatrix(os.path.join(dpath, "agaricus.txt.train"))
dtest = xgb.DMatrix(os.path.join(dpath, "agaricus.txt.test"))
watchlist = [(dtest, 'eval'), (dtrain, 'train')] watchlist = [(dtest, 'eval'), (dtrain, 'train')]
param = { param = {

6
tests/python/test_dmatrix.py
View File

@ -283,7 +283,7 @@ class TestDMatrix:
assert m0.feature_types == m1.feature_types assert m0.feature_types == m1.feature_types
def test_get_info(self): def test_get_info(self):
dtrain = xgb.DMatrix(dpath + 'agaricus.txt.train') dtrain, _ = tm.load_agaricus(__file__)
dtrain.get_float_info('label') dtrain.get_float_info('label')
dtrain.get_float_info('weight') dtrain.get_float_info('weight')
dtrain.get_float_info('base_margin') dtrain.get_float_info('base_margin')
@ -432,7 +432,9 @@ class TestDMatrix:
def test_uri_categorical(self): def test_uri_categorical(self):
path = os.path.join(dpath, 'agaricus.txt.train') path = os.path.join(dpath, 'agaricus.txt.train')
feature_types = ["q"] * 5 + ["c"] + ["q"] * 120 feature_types = ["q"] * 5 + ["c"] + ["q"] * 120
Xy = xgb.DMatrix(path + "?indexing_mode=1", feature_types=feature_types) Xy = xgb.DMatrix(
path + "?indexing_mode=1&format=libsvm", feature_types=feature_types
)
np.testing.assert_equal(np.array(Xy.feature_types), np.array(feature_types)) np.testing.assert_equal(np.array(Xy.feature_types), np.array(feature_types))
def test_base_margin(self): def test_base_margin(self):

8
tests/python/test_interaction_constraints.py
View File

@ -88,8 +88,12 @@ class TestInteractionConstraints:
def training_accuracy(self, tree_method): def training_accuracy(self, tree_method):
"""Test accuracy, reused by GPU tests.""" """Test accuracy, reused by GPU tests."""
from sklearn.metrics import accuracy_score from sklearn.metrics import accuracy_score
dtrain = xgboost.DMatrix(dpath + 'agaricus.txt.train?indexing_mode=1') dtrain = xgboost.DMatrix(
dtest = xgboost.DMatrix(dpath + 'agaricus.txt.test?indexing_mode=1') dpath + "agaricus.txt.train?indexing_mode=1&format=libsvm"
)
dtest = xgboost.DMatrix(
dpath + "agaricus.txt.test?indexing_mode=1&format=libsvm"
)
params = { params = {
'eta': 1, 'eta': 1,
'max_depth': 6, 'max_depth': 6,

4
tests/python/test_monotone_constraints.py
View File

@ -134,8 +134,8 @@ class TestMonotoneConstraints:
@pytest.mark.skipif(**tm.no_sklearn()) @pytest.mark.skipif(**tm.no_sklearn())
def test_training_accuracy(self): def test_training_accuracy(self):
from sklearn.metrics import accuracy_score from sklearn.metrics import accuracy_score
dtrain = xgb.DMatrix(dpath + 'agaricus.txt.train?indexing_mode=1') dtrain = xgb.DMatrix(dpath + "agaricus.txt.train?indexing_mode=1&format=libsvm")
dtest = xgb.DMatrix(dpath + 'agaricus.txt.test?indexing_mode=1') dtest = xgb.DMatrix(dpath + "agaricus.txt.test?indexing_mode=1&format=libsvm")
params = {'eta': 1, 'max_depth': 6, 'objective': 'binary:logistic', params = {'eta': 1, 'max_depth': 6, 'objective': 'binary:logistic',
'tree_method': 'hist', 'monotone_constraints': '(1, 0)'} 'tree_method': 'hist', 'monotone_constraints': '(1, 0)'}
num_boost_round = 5 num_boost_round = 5

4
tests/python/test_openmp.py
View File

@ -13,9 +13,7 @@ pytestmark = tm.timeout(10)
class TestOMP: class TestOMP:
def test_omp(self): def test_omp(self):
dpath = 'demo/data/' dtrain, dtest = tm.load_agaricus(__file__)
dtrain = xgb.DMatrix(dpath + 'agaricus.txt.train')
dtest = xgb.DMatrix(dpath + 'agaricus.txt.test')
param = {'booster': 'gbtree', param = {'booster': 'gbtree',
'objective': 'binary:logistic', 'objective': 'binary:logistic',

2
tests/python/test_parse_tree.py
View File

@ -13,7 +13,7 @@ rng = np.random.RandomState(1994)
class TestTreesToDataFrame: class TestTreesToDataFrame:
def build_model(self, max_depth, num_round): def build_model(self, max_depth, num_round):
dtrain = xgb.DMatrix(dpath + 'agaricus.txt.train') dtrain, _ = tm.load_agaricus(__file__)
param = {'max_depth': max_depth, 'objective': 'binary:logistic', param = {'max_depth': max_depth, 'objective': 'binary:logistic',
'verbosity': 1} 'verbosity': 1}
num_round = num_round num_round = num_round

4
tests/python/test_plotting.py
View File

@ -17,12 +17,10 @@ except ImportError:
pytestmark = pytest.mark.skipif(**tm.no_multiple(tm.no_matplotlib(), pytestmark = pytest.mark.skipif(**tm.no_multiple(tm.no_matplotlib(),
tm.no_graphviz())) tm.no_graphviz()))
dpath = 'demo/data/agaricus.txt.train'
class TestPlotting: class TestPlotting:
def test_plotting(self): def test_plotting(self):
m = xgb.DMatrix(dpath) m, _ = tm.load_agaricus(__file__)
booster = xgb.train({'max_depth': 2, 'eta': 1, booster = xgb.train({'max_depth': 2, 'eta': 1,
'objective': 'binary:logistic'}, m, 'objective': 'binary:logistic'}, m,
num_boost_round=2) num_boost_round=2)

4
tests/python/test_shap.py
View File

@ -46,8 +46,8 @@ class TestSHAP:
fscores = bst.get_fscore() fscores = bst.get_fscore()
assert scores1 == fscores assert scores1 == fscores
dtrain = xgb.DMatrix(dpath + 'agaricus.txt.train') dtrain = xgb.DMatrix(dpath + 'agaricus.txt.train?format=libsvm')
dtest = xgb.DMatrix(dpath + 'agaricus.txt.test') dtest = xgb.DMatrix(dpath + 'agaricus.txt.test?format=libsvm')
def fn(max_depth, num_rounds): def fn(max_depth, num_rounds):
# train # train

4
tests/python/test_updaters.py
View File

@ -154,9 +154,7 @@ class TestTreeMethod:
def test_hist_categorical(self): def test_hist_categorical(self):
# hist must be same as exact on all-categorial data # hist must be same as exact on all-categorial data
dpath = 'demo/data/' ag_dtrain, ag_dtest = tm.load_agaricus(__file__)
ag_dtrain = xgb.DMatrix(dpath + 'agaricus.txt.train')
ag_dtest = xgb.DMatrix(dpath + 'agaricus.txt.test')
ag_param = {'max_depth': 2, ag_param = {'max_depth': 2,
'tree_method': 'hist', 'tree_method': 'hist',
'eta': 1, 'eta': 1,

2
tests/python/test_with_pandas.py
View File

@ -222,7 +222,7 @@ class TestPandas:
set_base_margin_info(pd.DataFrame, xgb.DMatrix, "hist") set_base_margin_info(pd.DataFrame, xgb.DMatrix, "hist")
def test_cv_as_pandas(self): def test_cv_as_pandas(self):
dm = xgb.DMatrix(dpath + 'agaricus.txt.train') dm, _ = tm.load_agaricus(__file__)
params = {'max_depth': 2, 'eta': 1, 'verbosity': 0, params = {'max_depth': 2, 'eta': 1, 'verbosity': 0,
'objective': 'binary:logistic', 'eval_metric': 'error'} 'objective': 'binary:logistic', 'eval_metric': 'error'}