[R] lapply and paste
ebs15242 at gmail.com
Wed Mar 28 20:44:37 CEST 2012
Thank you, I was confused about that. What exactly is lapply for then,
if R handles this kind of thing automatically? Are there functions that are
On Wed, Mar 28, 2012 at 1:37 PM, R. Michael Weylandt
<michael.weylandt at gmail.com> wrote:
> 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
>> 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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