split strings
Try this:
sub(".tif$", "", basename(metr_list))
On Tue, May 26, 2009 at 9:27 AM, Monica Pisica <pisicandru at 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
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