Perfect. Thanks!
On Wed, Feb 5, 2014 at 10:35 AM, arun <smartpink...@yahoo.com> wrote:
> Hi,
> Try:
>
> plotx <- function(x,y, ...){
> labels <- list(xlab="x",ylab="y")
> args <- modifyList(labels,list(x=x,...))
> do.call("plot",args)
> }
>
> plotx(1:100,1:100,xlab="I Don't Work!")
> A.K.
>
>
> On Wednesday, February 5, 2014 11:14 AM, Dustin Fife <
> fife.dus...@gmail.com> wrote:
> Suppose I'm creating a function that sets default ylab and xlab behaviors:
>
> plotx = function(x, y, ...){
> plot(x,y, ylab="", xlab="",...)
> }
>
> The problem is, on occasion, I actually want to override the defaults
> in my function. I would like to do the following:
>
> plotx(1:100, 1:100, xlab="I Don't Work!")
>
>
> But I get the "multiple actual arguments" error message (which makes
> sense). Does anyone know how to set a default (like plotx does), but
> allow it to change if the user specifies the same argument via ...?
>
> I tried doing something like this:
>
> plotx = function(x, y, ...){
> args = list(...)
> yl = ifelse(!is.null(args$ylab), args$ylab, "")
> xl = ifelse(!is.null(args$xlab), args$xlab, "")
> plot(x,y, ylab=yl, xlab=xl,...)
> }
>
> but got the same error. I then started thinking that maybe I can
> remove the ylab and xlab arguments from ..., but I don't know how I'd
> do that. Any ideas of how to remove it? Or, is there a better way of
> doing this? Thanks!
>
> ______________________________________________
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>
>
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