[R] iterating over files in a directory with R

[Roger D. Peng]

I usually do something like this:

filelist <- dir(path = ".") ## files in current directory

for(filename in filelist) {
	do.something(filename)
}

-roger

femke wrote:

> Hello, 
> 
> I'm an R newbie and was wondering whether there are R commands for iterating over files in a directory.  Basically what I want to do is to iterate over many files and apply some R functions to each file seperately.  
> 
> e.g. for (each file in a directory) do { some R calculation with the info in that file }
> 
> Could someone please give me a pointer to how (or if) this might be done with R - I haven't yet been able to find anything relevant in the manuals.  Or would I need to call each file with some language such as Java and then use R once I have the file name?
> 
> Thanks for your help,
> 
> femke
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