Thanks

https://www.packtpub.com/books/content/support
怎么下载不了书中的code，需要邮件注册，麻烦楼主帮下载一下，一起提供，谢谢了！
register to  have the files e-mailed directly to you

此书名有点问题，会误为在R 中 “图（graph)论”,而实际是“绘图（Graphing)论"：
Use R's powerful graphing capabilities to design and
create professional-level graphics

此书名有点问题，会误为在R 中 “图（graph)论”,而实际是“绘图（Graphing)论"：
Use R's powerful graphing capabilities to design and
create professional-level graphics

Thanks!