Python 3：NameError：未定义名称“sklearn”

Posted 2023-03-12

【中文标题】Python 3：NameError：未定义名称“sklearn”

【英文标题】：Python 3: NameError: name 'sklearn' is not defined

【发布时间】：2017-09-22 08:46:01

【问题描述】：

我正在尝试运行 Elastic Net 回归，但出现以下错误：NameError: name 'sklearn' is not defined...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))

【问题讨论】：

使用linear_model.ElasticNet()。删除sklearn

【参考方案1】：

因为你已经导入了linear_model

改变

ElasticNet = sklearn.linear_model.ElasticNet()

到

ElasticNet = linear_model.ElasticNet()