sklearn使用小记GridSearchCV

def test_grid_search():    from sklearn import datasets,svm    iris = datasets.load_iris()    parameters = {'kernel': ('linear', 'rbf'), 'C': [1, 10,50,100]}  #注意score='roc_auc'是二分类的,多分类会报错    svc = svm.SVC()    clf = GridSearchCV(svc, parameters,cv=7)    clf.fit(iris.data, iris.target)    print(type(clf.best_params_))    print(clf.best_params_)