91af8f7106
* Some minor changes to the code style Some minor changes to the code style in file basic_walkthrough.py * coding style changes * coding style changes arrcording PEP8 * Update basic_walkthrough.py
20 lines
637 B
Python
Executable File
20 lines
637 B
Python
Executable File
#!/usr/bin/python
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import xgboost as xgb
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### load data in do training
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dtrain = xgb.DMatrix('../data/agaricus.txt.train')
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dtest = xgb.DMatrix('../data/agaricus.txt.test')
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param = {'max_depth':2, 'eta':1, 'silent':1, 'objective':'binary:logistic'}
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watchlist = [(dtest, 'eval'), (dtrain, 'train')]
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num_round = 3
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bst = xgb.train(param, dtrain, num_round, watchlist)
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print ('start testing predict the leaf indices')
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### predict using first 2 tree
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leafindex = bst.predict(dtest, ntree_limit=2, pred_leaf=True)
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print(leafindex.shape)
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print(leafindex)
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### predict all trees
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leafindex = bst.predict(dtest, pred_leaf=True)
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print(leafindex.shape)
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