[R] passing arguments to subset from a function

iverson iverson at biostat.wisc.edu
Wed Dec 17 20:55:41 CET 2008


This thread may help?

https://stat.ethz.ch/pipermail/r-help/2007-November/145345.html

On Wed, 17 Dec 2008 20:07:08 +0100, "GOUACHE David"
<D.GOUACHE at arvalisinstitutduvegetal.fr> wrote:
> Hello R-helpers,
> 
> I'm writing a long function in which I manipulate a certain number of
> datasets. I want the arguments of said function to allow me to adapt the
> way I do this. Among other things, I want my function to have an argument
> which I will pass on to subset() somewhere inside my function. Here is a
> quick and simplified example with the iris dataset.
> 
> myfunction<-function(table, extraction)  {
>      table2<-subset(table, extraction)
> return(table2) }
> 
> myfunction(iris, extraction= Species=="setosa")
> 
> 
> ############## end
> 
> What I would like is for this function to return exactly the same thing
as
> :
> subset(iris, Species=="setosa")
> 
> 
> Thanks for your help.
> 
> Regards,
> 
> David Gouache
> 
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