整理了Pyspark进行机器学习的代码，其主要部分包括：

• Pyspark中的基本操作

• 数据的读取

• 特征处理

• 模型训练

• 特征重要性展示

• 超参数搜索

• 模型保存

主要代码在MlDemo中.

主要参考：

http://spark.apache.org/docs/2.1.2/api/python/pyspark.ml.html#

https://www.jianshu.com/p/4d7003182398

https://www.jianshu.com/p/20456b512fa7

https://blog.csdn.net/sinat_26917383/article/details/80500349

https://blog.csdn.net/cymy001/article/details/78483723?depth_1-utm_source=distribute.pc_relevant.none-task&utm_source=distribute.pc_relevant.none-task

https://blog.csdn.net/qq_40587575/article/details/91170554

https://www.pythonheidong.com/blog/article/51724/

https://blog.csdn.net/sinat_36226553/article/details/104129182

https://www.cnblogs.com/SoftwareBuilding/p/9492285.html

https://blog.csdn.net/mergerly/article/details/77250098

https://blog.csdn.net/yeshang_lady/article/details/89710914

https://blog.csdn.net/yeshang_lady/article/details/87373280

https://www.jianshu.com/p/70f8c78a3fc9

https://stackoverflow.com/questions/38517808/create-a-dataframe-from-a-list-in-pyspark-sql

https://www.jianshu.com/p/70f8c78a3fc9