On Wed, Jul 8, 2009 at 8:34 PM, Jason Rupert<jasonkrup...@yahoo.com> wrote:
>
> Maybe there is a great website out there or white paper that discusses this
> but again my Google skills (or lack there of) let me down.
Yeah, R is difficult to search for - I've had partial success with
rseek.org, though.
>
> I would like to know the best way to export several doubles from a function,
> where the doubles are not an array.
>
> Here is a contrived function similar to my needs:
>
> multipleoutput<-function(x)
> {
> squared<-x^2
> cubed<-x^3
> exponentioal<-exp(x)
> factorialVal<-factorial(x)
>
> }
You can always do:
> multipleoutput <- function (x) { return (c(square = x^2, cube = x^3, exp =
> exp(x))) }
But then you'd have to call it like so:
> mapply(multipleoutput, c(0,1,2))
[,1] [,2] [,3]
square 0 1.000000 4.000000
cube 0 1.000000 8.000000
exp 1 2.718282 7.389056
If you call it like so:
> multipleoutput(c(0,1,2))
square1 square2 square3 cube1 cube2 cube3 exp1 exp2
0.000000 1.000000 4.000000 0.000000 1.000000 8.000000 1.000000 2.718282
exp3
7.389056
then R flattens the result. Weird.
- Godmar
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