Hi Jorge, Thanks so much! Exactly what I wanted. Finally I wrote:
for(i in 1976:1981){ PE.files_01_7681 <- paste("val_mapped_petpe_", 1976:i, "01.txt", sep="") } Cheers, Bea On 21/04/2014 10:46, Jorge I Velez wrote: > Hi Beatriz, > > Try > > paste("val_mapped_petpe_", 1976:1981, "01.txt", sep="") > > Best, > Jorge.- > > > On Mon, Apr 21, 2014 at 6:43 PM, Beatriz R. Gonzalez Dominguez > <aguitatie...@hotmail.com <mailto:aguitatie...@hotmail.com>> wrote: > > Dear all, > > I'm trying to create a loop to select a series of files into my > computer but I haven't been successful until now. I've looked into > different possibilities but none has worked. I'd appretiate if you > could help me by providing me with some ideas. > > Basically what I'd like to do is to create a character string > variable [1:5], same as the one that could be obtained with > 'list.files', but using a 'for' loop. > > This is one of the things I've tried but obviously doesn't yield > the results I would like: > > for(i in 1976:1981){ > PE.files_01_7681 <- paste("val_mapped_petpe_", i, "01.txt", sep="") > paste(PE.files_01_7681[i]) > } > > Many thanks! > > ______________________________________________ > R-help@r-project.org <mailto:R-help@r-project.org> mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide > http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code. > > [[alternative HTML version deleted]] ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.