Re: [R] regexpr

From: jim holtman <jholtman_at_gmail.com>
Date: Fri, 29 Jun 2007 13:13:48 -0400

mylist=c("MN","NY","FL")
g=regexpr(paste(mylist[1], "$", sep=""), "Those from MN:") if (g>0)
{
"On list"
}

or in a loop

for (i in mylist){

    if (regexpr(paste(mylist[i], "$", sep="")) > 0){

        .....code for those from....
    }
}

On 6/29/07, runner <sunnyside500_at_gmail.com> wrote:
>
>
> Hi,
>
> I 'd like to match each member of a list to a target string, e.g.
> ------------------------------
> mylist=c("MN","NY","FL")
> g=regexpr(mylist[1], "Those from MN:")
> if (g>0)
> {
> "On list"
> }
> ------------------------------
> My question is:
>
> How to add an end-of-string symbol '$' to the to-match string? so that 'M'
> won't match.
>
> Of course, "MN$" will work, but i want to use it in a loop; "mylist[i]" is
> what i need. I tried "mylist[1]$", but didn't work. So why it doesn't
> extrapolate? How to do it?
>
> Thanks a lot!
> --
> View this message in context:
> http://www.nabble.com/regexpr-tf4000743.html#a11363041
> Sent from the R help mailing list archive at Nabble.com.
>
> ______________________________________________
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> PLEASE do read the posting guide
> http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
>

-- 
Jim Holtman
Cincinnati, OH
+1 513 646 9390

What is the problem you are trying to solve?

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Received on Fri 29 Jun 2007 - 17:19:11 GMT

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