zhijie zhang wrote:
> Dear friends,
> Now, when i use the argument return(x=x,y=y,prob=prob) , R displays the
> waring message:
> Warning message:
> The return value for multiple variables wasn't used in: return(x = x, y =
> gy, prob = prob)
> I used the methods of "help.search("return")" and "?return" to get some
> help, but didn't find info on it.
> Anybody knows how it should be used correctly?
>
Return(value) takes only one argument. To return a list,
return(list(x=x,y=y,prob=prob))
I bet the author of help(return) thought that this was implied clearly
enough.
> #EXAMPLES
> a<-function(x,y,z)
> {
> gx<-seq(1,10,length.out=20)
> gy<-gx
> prob<-matrix(20,20)
> for (i in 1:20)
> {
> for (j in 1:20)
> {
> prob<-0.1
> }
> }
> return(x=gx,y=gy,prob=prob)
> }
>
> a(1,1,1) # the warning message will display
> Thanks.
>
>
--
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