21 lines
657 B
Python
Executable File
21 lines
657 B
Python
Executable File
#!/usr/bin/python
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import numpy as np
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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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