regex - 正则表达式与 R

Question

> name = '645te5.78d'

我正在寻找一个可以摆脱我的变量中的点和任何内容的函数name。

> new_fun(name)
> name
'645te5'

score 3 · Accepted Answer

3

sub should work:

sub('\\..*', '', name)

于 2013-11-03T18:36:15.277 回答

score 2 · Accepted Answer

If that is a general case that

There exist only one dot and you want to get the first part. Maybe you strsplit instead.

unlist(strsplit(name, '\\.'))[1]

2 回答 2