把A换成B，用B代替A。

I want to substitute all A's for B's and B's for A's in a string in R.

我想把所有的A代入B, B代入R中的A。

My input is

我的输入

x = "ABCDBBABDC"

and my output should be,

输出应该是，

y = "BACDAABADC"

How could I do this in one line?

我怎么能在一行里做这个呢?

I tried sub but I cannot do multiple substitutions.

我尝试了下标，但是不能做多次替换。

1 个解决方案

#1

You are looking for chartr:

您正在寻找chartr:

x = "ABCDBBABDC"
chartr("AB", "BA", x)
# [1] "BACDAABADC"