R包是R语言内最强大的功能
以dplyr包为例学习R语言包的操作
思维导图.png
部分操作实例

](https://upload-images.jianshu.io/upload_images/19110356-1dbcb2de7c933685.png?imageMogr2/auto-orient/strip%7CimageView2/2/w/1240)
](https://upload-images.jianshu.io/upload_images/19110356-ca0094d09c643ab8.png?imageMogr2/auto-orient/strip%7CimageView2/2/w/1240)