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On Thu, Feb 14, 2013 at 6:59 AM, Esam Tolba <eato...@gmail.com> wrote: > Dear all > I am using r (2.15.2) under windows 7 32bit. > I want to use system command to execute an external program inside a > for loop. this program needs the input and output names. > since the names will change in the for loop I am not able to use the > programs on all the files > > > > > for (k in 1:10){ > x=read.table ("data.txt") > xx=x[1:5, ] > xxx=paste0("data_",k,"txt") > write.table (xx,xxx,quote =FALSE, sep = "\t",row.names = FALSE, > col.names = FALSE) > system ('dssp.exe -i xxx -o xxx.out) > > } > > > > > > > > Best Regards, > > ______________________________________________ > 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. > -- Gregory (Greg) L. Snow Ph.D. 538...@gmail.com [[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.