一种办法是： Rgui图标右键属性里目标后面加language=en“...\R\R-2.15.2-x32\bin\Rgui.exe”[空格]LANGUAGE=en
问题是当存完workspace，下次直接点workspace的话，又变回中文了。

所以更彻底的办法是：删掉非英文语言包， （在R路径下share/locale文件夹下）
more radical solution is simply to delete the share/localefolder. It contains translation files, and if R can’t find them it will fall back to English.
经检验，有效根除

参：
http://notepad.patheticcockroach.com/412/how-to-change-language-in-r/