Try this:
sub(".tif$", "", basename(metr_list))
On Tue, May 26, 2009 at 9:27 AM, Monica Pisica <pisican...@hotmail.com> wrote:
>
> Hi everybody,
>
> I have a vector of characters and i would like to extract certain parts. My
> vector is named metr_list:
>
> [1] "F:/Naval_Live_Oaks/2005/data//BE.tif"
> [2] "F:/Naval_Live_Oaks/2005/data//CH.tif"
> [3] "F:/Naval_Live_Oaks/2005/data//CRR.tif"
> [4] "F:/Naval_Live_Oaks/2005/data//HOME.tif"
>
> And i would like to extract BE, CH, CRR, and HOME in a different vector named
> "names.id" for example. I read the help files for sub and grep and the likes
> but i have to recognize that i did not understand it. So i've done this
> (which does the job but extremely clumsy):
>
> b <- strsplit(metr_list, "//")
> b <- unlist(b)
> d <- strsplit(b, "\\.")
> d <- unlist(d)
> names.id <- d[c(2, 5, 8, 11)]
>
> Can anybody show what would be the proper way to achieve this with some
> explanations?
>
> Thanks,
>
> Monica
> _________________________________________________________________
> Hotmail® goes with you.
>
> ial_Mobile1_052009
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