是双“"和单''引号(总是)在R中可以互换吗? [英] Are double "" and single '' quotes (always) interchangeable in R?

问题描述

这也许是个小问题...

This is perhaps rather a minor question...

但是不久前，我正在浏览我编写的一些代码，发现我倾向于完全互换地使用="something"和='something_else'，通常是在同一函数中使用.

but just a moment ago I was looking through some code I had written and noticed that I tend to just use ="something" and ='something_else' completely interchangeably, often in the same function.

所以我的问题是:是否存在使用一个或另一个(单引号或双引号)的R行为不同的R代码?还是它们完全是同义词?

So my question is: Is there R code in which using one or other (single or double quotes) has different behaviour? Or are they totally synonymous?

推荐答案

> print(""hi"")
Error: unexpected symbol in "print(""hi"
> print("'hi'")
[1] "'hi'"
> print("hi")
[1] "hi"

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