note that load() returns, invisibly, a string with the names of the
objects that were loaded. something in the lines of:
myObj <- load(file.path(fnDir, cvListFiles[i]))
myFunction(get(myObj))
rm(list=myObj)
might be closer to what you want.
moreover, if length(myObj) > 1, you might want sth like:
lapply(myObj, function(x) myFunction(get(x)))
instead...
best
b
On Mon, 10 Dec 2007, Talbot Katz wrote:
>
> Hi.
>
> I have a procedure that reads a directory, loops through a set of particular
> .RData files, loading each one, and feeding its object(s) into a function, as
> follows:
>
> cvListFiles<-list.files(fnDir);
> for(i in grep(paste("^",pfnStub,".*\\.RData$",sep=""),cvListFiles)){
> load(paste(fnDir,cvListFiles[i],sep="/"));
> myFunction(rliObject);
> rm(rliObject);
> };
>
> where fnDir is the directory I'm reading, and pfnStub is a string that begins
> the name of each of the files I want to load. As you can see, I'm assuming
> that each of the selected .RData files contains an object named "rliObject"
> and I'm hoping that nothing in any of the files I'm loading overwrites an
> object in my environment. I'd like to clean this up so that I can extract
> the object(s) from each data file, and feed them to my function, whatever
> their names are, without corrupting my environment. I'd appreciate any
> assistance. Thanks!
>
> -- TMK --212-460-5430 home917-656-5351 cell
> [[alternative HTML version deleted]]
>
> ______________________________________________
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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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