这是一篇关于R语言数据导入导出的课程，通过示例介绍如何使用R语言进行统计计算- This is an essay about R language data import and export of course, through the example to introduce how to use the R language statistical calculations

这是一篇关于R语言统计图表设计的文档，有利于读者快速掌握R语言强大的做图功能- This is an essay about R language statistical graphic design document, is advantageous to the reader quickly grasp R language powerful do figure