名称和姓氏有什么区别 [英] what is the difference between names and colnames

问题描述

我只想了解在使用<$ c $时名称和 colnames 之间是否存在区别c> data.frame 。两者的行为似乎相同。我可以用另一个替换吗？

I just want to understand if there is a difference between names and colnames when working with data.frame. Both seems to behave the same way. Can I subsitute one by the other?

推荐答案

data.frames是否相同？ 是

Are they the same for data.frames? YES

它们在总体上是否相同？
不完全是-最大的区别是 colnames 也适用于 matrix ，而 names 则不行（仅 dataframes ）。

Are they the same in general? Not quite--the big difference is that colnames also works for matrices, whereas names does not (just dataframes).

此外，您可以使用名称设置/获取向量名称（而且，由于明显的原因，您不能使用 colnames 执行此操作-结果为NULL且设置错误）。

In addition, you can use names to set/get the names of vectors (and, for obvious reasons, you can't do this with colnames--the result is NULL for getting and an error for setting).

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