写一个小程序是关于做一个数据帧(DATE FRAME),其中一个分类变量(CATVAR):
1.对于数字变量,利用CATVAR为基础的盒形图,并保存到一个单一的PDF文档中,这些图形。
2.为所有的变量与CATVAR分类变量列联表。
3.在
http://addictedtor.free.fr/graphiques/thumbs.php introduces different R packages for different types of graphs. Choose one of them to make one or more graphics. Present the syntax and comment what you see in your (s) graphics.
谢谢@