[R] Basic function output/scope question

[Schalk Heunis]

Don't know SAS, but you can use y<<-10 to make the answer available in
the global environement.  See ?'<<-'
To define the output see ?return

Schalk Heunis


On Mon, Sep 21, 2009 at 5:29 PM, David Young <dyoung at telefonica.net> wrote:
> Hello Group,
>
> I'm trying to learn R and am having a problem getting output from a
> function I'm trying to write.  The problem is clearly one of scope,
> but I can't find the documentation that tells me how to get around the
> issue.
>
> Here is an example of my problem.
>
> testfunc<-function(x)
> { y<-10
> print(y)
> print(x)
> }
>
> testfunc(4)
>
> The variables x and y are accessible during execution of the function
> "testfunc" but not afterwards.  I've read through the Introduction to
> R, and the R language definition on functions, but do not see how to
> define the output of the function, or change the scope of a function
> variable using the R equivalent of a %global statement as would be
> done in SAS.  Can someone tell me either where I can look for more
> information or how to make x and y accessible to operations after the
> function is run?
>
> Thanks in advance for any suggestions.
>
>
>
> --
> Best regards,
>
> David Young
> Marketing and Statistical Consultant
> Madrid, Spain
> +34 913 540 381
> http://www.linkedin.com/in/europedavidyoung
>
>                          mailto:dyoung at telefonica.net
>
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