一、安装statsmodels出错
错误信息：error: Microsoft Visual C++ 14.0 is required. Get it with "Microsoft Visual C++ Build Tools": http://landinghub.visualstudio.com/visual-cpp-build-tools
解决办法：
下载VCFORPYTHON，安装后，再试。下载地址https://www.microsoft.com/en-gb/download/confirmation.aspx?id=44266
参考：http://www.statsmodels.org/stable/install.html