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Document behavior of get_fscore() for zero-importance features (#3763)

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Philip Hyunsu Cho 2018-10-08 01:52:25 -07:00 committed by GitHub
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python-package/xgboost/core.py
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@ -1395,6 +1395,11 @@ class Booster(object):
learner (`booster=gbtree`). It is not defined for other base learner types, such learner (`booster=gbtree`). It is not defined for other base learner types, such
as linear learners (`booster=gblinear`). as linear learners (`booster=gblinear`).
.. note:: Zero-importance features will not be included
Keep in mind that this function does not include zero-importance feature, i.e.
those features that have not been used in any split conditions.
Parameters Parameters
---------- ----------
fmap: str (optional) fmap: str (optional)