简洁的想法

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RStudio non-UTF8 Warning Message

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Rstudio 是一个不错的R语言IDE, 因为集成knitr, 使得这样一个编程IDE可以用Markdown来生成漂亮的PDF文本，甚至可以用LaTEX的语法加入公式，这样小篇幅的科技短文都可以用Markdown来写了。

我饶有兴致地安装了RStudio，结果一运行居然报了一个Warning，看来最近我的Warning不少。

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During startup - Warning messages: 
1: Setting LC_CTYPE failed, using "C" 
2: Setting LC_COLLATE failed, using "C" 
3: Setting LC_TIME failed, using "C" 
4: Setting LC_MESSAGES failed, using "C" 
WARNING: You're using a non-UTF8 locale, therefore only ASCII 
characters will work. 
Please read R for Mac OS X FAQ (see Help) section 9 and adjust your 
system preferences accordingly.

解决的方法也就一句话，放在R控制台运行一下就好了：

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system("defaults write org.R-project.R force.LANG en_US.UTF-8")

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