One solution is
test <- c("1.11","10.11","11.11","113.31","114.2","114.3")
id <- unlist(lapply(strsplit(test,"[.]"),function(x) {x[2]}))
> -----Original Message-----
> From: Bernd Weiss [mailto:[EMAIL PROTECTED]
> Sent: Thursday, August 18, 2005 12:10 PM
> To: [email protected]
> Subject: [R] Regular expressions & sub
>
>
> Dear all,
>
> I am struggling with the use of regular expression. I got
>
> > as.character(test$sample.id)
> [1] "1.11" "10.11" "11.11" "113.31" "114.2" "114.3" "114.8"
>
> and need
>
> [1] "11" "11" "11" "31" "2" "3" "8"
>
> I.e. remove everything before the "." .
>
> TIA,
>
> Bernd
>
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