fanfoxle

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After I use MinMaxScaler() to preprocess the data (rather than StandardScaler()), the result is much better. ![pred_0](https://user-images.githubusercontent.com/36478240/78625773-8a252c00-78bf-11ea-90d5-cec99d6f4eba.png)

> Download this file (MSVC Build Tool for 2017, Don't use 2019, it will failed) > https://aka.ms/vs/15/release/vs_buildtools.exe > > And Install items (like this, sorry my language is Chinese) >...