R help - Feb 2013 - execute an external program in R

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,

?sprintf


On Thu, Feb 14, 2013 at 6:59 AM, Esam Tolba <eatolba@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.
538280@gmail.com

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