Re: [R] Automatic File Reading [Broadcast]

From: Liaw, Andy <andy_liaw_at_merck.com>
Date: Thu 19 Oct 2006 - 02:56:29 GMT


Works on all platforms:

flist <- list.files(path=file.path("somedir", "somewhere"),

                    pattern="[.]csv$")

csvlist <- lapply(flist, read.csv, header=TRUE) whateverList <- lapply(csvlist, whatever)

Andy

From: Richard M. Heiberger
>
> Wensui Lui asks:
> > is there a similar way to read all txt or csv files with same
> > structure from a folder?
>
>
>
> On Windows I use this construct to find all files with the
> specified wild card name.
> I used the "\\" in the file paths with the translate=FALSE,
> because the "/" in
> the DOS switches "/w/B" must not be translated. On Windows
> this picks up
> both lower and upper case filenames
>
> A similar construct can be written for Unix.
>
> tmp <- shell('dir c:\\HOME\\rmh\\tmp\\*.R /w/B', intern=TRUE,
> translate=FALSE) ##msdos
> for (i in tmp) source(paste("c:\\HOME\\rmh\\tmp\\", i, sep=""))
>
> ______________________________________________
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> PLEASE do read the posting guide
> http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
>
>
>



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