Use ifelse().
ifelse(A$TIME >= 24, A$TIME + 24, A$TIME)
Please in the future use dput() to provide your data, and explain what
"did not work" means.
Sarah
On Wed, Nov 21, 2012 at 12:05 PM, york8866 <yu_y...@hotmail.com> wrote:
> Hi all,
>
> I had a dataset A like:
>
> TIME DV
> 0 0
> 1 10
> 5 20
> 24 30
> 36 80
> 48 60
> 72 15
>
> I would like to add 24 to those values higher than 24 in the TIME column.
>
> I did the following:
>
> If (A$TIME>=24) {
> A$TIME <- A$TIME+24}
>
> It did not work. How should I do it?
>
> Thanks,
>
>
>
--
Sarah Goslee
http://www.functionaldiversity.org
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