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Update Python demos with tests. (#5651)

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* Remove GPU memory usage demo.
* Add tests for demos.
* Remove `silent`.
* Remove shebang as it's not portable.
This commit is contained in:
Jiaming Yuan
2020-05-12 12:04:42 +08:00
committed by GitHub
parent 4e64e2ef8e
commit 2c1a439869
25 changed files with 158 additions and 158 deletions
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17
demo/guide-python/predict_leaf_indices.py Executable file → Normal file
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@@ -1,19 +1,20 @@
#!/usr/bin/python
import os
import xgboost as xgb
### load data in do training
dtrain = xgb.DMatrix('../data/agaricus.txt.train')
dtest = xgb.DMatrix('../data/agaricus.txt.test')
param = {'max_depth':2, 'eta':1, 'silent':1, 'objective':'binary:logistic'}
# load data in do training
CURRENT_DIR = os.path.dirname(__file__)
dtrain = xgb.DMatrix(os.path.join(CURRENT_DIR, '../data/agaricus.txt.train'))
dtest = xgb.DMatrix(os.path.join(CURRENT_DIR, '../data/agaricus.txt.test'))
param = {'max_depth': 2, 'eta': 1, 'objective': 'binary:logistic'}
watchlist = [(dtest, 'eval'), (dtrain, 'train')]
num_round = 3
bst = xgb.train(param, dtrain, num_round, watchlist)
print ('start testing predict the leaf indices')
### predict using first 2 tree
print('start testing predict the leaf indices')
# predict using first 2 tree
leafindex = bst.predict(dtest, ntree_limit=2, pred_leaf=True)
print(leafindex.shape)
print(leafindex)
### predict all trees
# predict all trees
leafindex = bst.predict(dtest, pred_leaf=True)
print(leafindex.shape)