[R] lapply and paste
R. Michael Weylandt
michael.weylandt at gmail.com
Wed Mar 28 20:37:57 CEST 2012
I think you're confused about the need for lapply -- paste is
vectorized so this
paste("filename_", suff, ".ext", sep = "")
will work. But if you want to use lapply (for whatever reason) try this:
lapply(suff, function(x) paste("filename_", x, ".ext", sep = "")
On Wed, Mar 28, 2012 at 2:31 PM, Ed Siefker <ebs15242 at gmail.com> wrote:
> I have a list of suffixes I want to turn into file names with extensions.
> suff<- c("C1", "C2", "C3")
> paste("filename_", suff[], ".ext", sep="")
>  "filename_C1.ext"
> How do I use lapply() on that call to paste()?
> What's the right way to do this:
> filenames <- lapply(suff, paste, ...)
> Can I have lapply() reorder the arguments to FUN?
> R-help at r-project.org mailing list
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> and provide commented, minimal, self-contained, reproducible code.
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