python_linear_model

# -*- coding: utf-8 -*-"""come form sklearn测试"""print (__doc__)#load  data from sklearnfrom sklearn import datasetsdiabetes = datasets.load_diabetes()diabetes_X_train = diabetes.data[:-20]diabetes_X_test = diabetes.data[-20:]diabetes_y_train = diabetes.target[:-20]diabetes_y_test = diabetes.target[-20:]# Create linear modelfrom sklearn import linear_modelregr =linear_model.LinearRegression()regr.fit(diabetes_X_test,diabetes_y_test)print("系数为：",regr.coef_)re_score = regr.score(diabetes_X_test,diabetes_y_test)#打印R_squareprint(re_score)