2019-11-19
2019-11-19 本文已影响0人
aebd5d613ae8
# 首先构造一个所有搜索参数的字典
parameters = {'splitter':('best','random')
,'criterion':("gini","entropy")
,"max_depth":range(1,10)
,'min_samples_leaf':range(1,50,5)
,'min_impurity_decrease':np.linspace(0,0.5,20)
}
GS = GridSearchCV(clf,parameters, cv = 5 , verbose=1 )
