[R] string split problem

[William Dunlap]

> test <- c('aaa.bb.cc','aaa.dd', 'aaa', 'aaa.', '.eee', '')
> sub("([^.]*)(.*)", "\\1", test)
[1] "aaa" "aaa" "aaa" "aaa" ""    ""
> sub("([^.]*)(.*)", "\\2", test)
[1] ".bb.cc" ".dd"    ""       "."      ".eee"   ""
Bill Dunlap
TIBCO Software
wdunlap tibco.com


On Fri, Oct 23, 2015 at 12:17 PM, Jun Shen <jun.shen.ut at gmail.com> wrote:
> Dear list,
>
> Say I have a vector that has two different types of string
>
> test <- c('aaa.bb.cc','aaa.dd')
>
> I want to extract the first part of the string (aaa) as a name and save the
> rest of the string as another name.
>
> I was thinking something like
>
> sub('(.*)\\.(.*)','\\1',test) but doesn't give me what I want.
>
>
> Appreciate any comments. Thanks.
>
> Jun
>
>         [[alternative HTML version deleted]]
>
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