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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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10
demo/guide-python/boost_from_prediction.py Executable file → Normal file
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@@ -1,15 +1,17 @@
#!/usr/bin/python
import os
import xgboost as xgb
dtrain = xgb.DMatrix('../data/agaricus.txt.train')
dtest = xgb.DMatrix('../data/agaricus.txt.test')
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'))
watchlist = [(dtest, 'eval'), (dtrain, 'train')]
###
# advanced: start from a initial base prediction
#
print('start running example to start from a initial prediction')
# specify parameters via map, definition are same as c++ version
param = {'max_depth': 2, 'eta': 1, 'silent': 1, 'objective': 'binary:logistic'}
param = {'max_depth': 2, 'eta': 1, 'objective': 'binary:logistic'}
# train xgboost for 1 round
bst = xgb.train(param, dtrain, 1, watchlist)
# Note: we need the margin value instead of transformed prediction in