机器学习入门很好的代码，以电子商务案例进行实践，使用R语言实现-Getting good code machine learning, e-commerce case to practice using the R language

机器学习实战及配套Python代码,很好的入门书。-Machine Learning in Action. Source eode and book

GWR能够实现地理加权回归计算，里面有GWR4操作说明，虽然是英文，但有图片介绍，很容易理解，是GWR模型入门的好工具，适合经济学、数据挖掘等人员使用(GWR can realize geographically weighted regression calculation, including GWR4 operation instructions. Although it is in English, it has pictures to introduce, and is easy to