将R中的data.frame名称提取为字符 [英] Extract name of data.frame in R as character

问题描述

如何提取R中 data.frame 的名称作为字符？

How can I extract the name of a data.frame in R as a character?

例如，如果我有名为 df data.frame c>，我想将 df作为字符对象。

For example, if I have data.frame named df, I want to get "df" as a character object.

推荐答案

a <- data.frame()
deparse(substitute(a))
[1] "a"

这也是图知道如何在轴上放置

This is also how plot knows what to put on the axes

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