title: Is there class weight (or alternative way) for GradientBoostingClassifier in Sklearn when dealing with VotingClassifier or Grid search?
body: <p>I'm using GradientBoostingClassifier for my unbalanced labeled datasets. It seems like class weight doesn't exist as a parameter for this classifier in Sklearn. I see I can use sample_weight when fit but I cannot use it when I deal with VotingClassifier or GridSearch. Could someone help?</p>