Python 3：NameError：未定义名称'sklearn'

Question

我正在尝试运行弹性网络回归，但得到以下错误：NameError：名称'sklearn'未定义...非常感谢任何帮助！

    # ElasticNet Regression 

    from sklearn import linear_model
    import statsmodels.api as sm

    ElasticNet = sklearn.linear_model.ElasticNet() # create a lasso instance
    ElasticNet.fit(X_train, y_train) # fit data

    # print(lasso.coef_)
    # print (lasso.intercept_) # print out the coefficients

    print ("R^2 for training set:"),
    print (ElasticNet.score(X_train, y_train))

    print ('-'*50)

    print ("R^2 for test set:"),
    print (ElasticNet.score(X_test, y_test))

Answer 1

导入linear_model

更改

ElasticNet = sklearn.linear_model.ElasticNet()

到

ElasticNet = linear_model.ElasticNet()