Hendrik/xgboost
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Update Python demos with tests. (#5651)

Browse Source 
* 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
Download Patch File Download Diff File Expand all files Collapse all files

13
demo/guide-python/external_memory.py Executable file → Normal file
View File

@@ -1,6 +1,4 @@
#!/usr/bin/python
import numpy as np
import scipy.sparse
import os
import xgboost as xgb
### simple example for using external memory version
@@ -8,11 +6,12 @@ import xgboost as xgb
# this is the only difference, add a # followed by a cache prefix name
# several cache file with the prefix will be generated
# currently only support convert from libsvm file
dtrain = xgb.DMatrix('../data/agaricus.txt.train#dtrain.cache')
dtest = xgb.DMatrix('../data/agaricus.txt.test#dtest.cache')
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'))
# specify validations set to watch performance
param = {'max_depth':2, 'eta':1, 'silent':1, 'objective':'binary:logistic'}
param = {'max_depth':2, 'eta':1, 'objective':'binary:logistic'}
# performance notice: set nthread to be the number of your real cpu
# some cpu offer two threads per core, for example, a 4 core cpu with 8 threads, in such case set nthread=4
@@ -21,5 +20,3 @@ param = {'max_depth':2, 'eta':1, 'silent':1, 'objective':'binary:logistic'}
watchlist = [(dtest, 'eval'), (dtrain, 'train')]
num_round = 2
bst = xgb.train(param, dtrain, num_round, watchlist)