Comments (2)
Thanks for reporting the problem, this is a BUG that we overlooked, and have been fixed now.
Bug: scale_pos_weight not initialized to default value, will cause undefined behavior when the parameter is not set
from xgboost.
actually, even i used scale_pos_weight, still get only one root if i used skleatn grid cv search
@tqchen
which lead to roc auc to 0.5.
from xgboost.
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from xgboost.