[R] processing all files with certain extension in a directory

[Benilton Carvalho]

theFiles <- list.files(inputdir, full=T, pattern="\\.[eE][xX][tT]$")
for (file in theFiles){
...
}


On Fri, Jan 15, 2010 at 11:43 AM, Albert Vilella <avilella at gmail.com> wrote:
> Hi all,
>
> I'm trying to process all files with a certain extension "*.ext" in a
> directory like this:
>
>> R --slave --args /my/dir < dir_plot.r
>
> where I then I want to do something like:
>
> myarg <- commandArgs()
> inputdir <- myarg[length(myarg)]
> print(inputdir)
> "for file with extension "*.ext in inputdir"
> do
>  data = process.data(file)
>  outfile = paste(file,".png",sep="")
>  png(outfile,width=3200,height=2400)
>  do.a.plot(data)
>  dev.off()
> done
> q()
>
> How can I do the file looping bit?
>
> Thanks in advance,
>
> Cheers,
>
> Albert.
>
> ______________________________________________
> R-help at 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.
>