> -----Original Message-----
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED] On Behalf Of Michael A.
> Gilchrist
> Sent: Tuesday, August 26, 2008 6:03 PM
> To: r-help@r-project.org
> Subject: [R] switch() usage
>
> Hello,
>
> I am wondering if it is possible to run separate lines of
> code within switch()
> as one can do in most languages.
>
> For example, I'd like to have switch execute a few lines of
> code based on the
> value passed to it.
>
> For example,
>
> >index = 1
> >
> >switch(index,
> > command 1; command 2; command 3, #execute if index = 1
> > command 4; command 5; command 6, #execute if index = 2
> > command 7.... #execute if index = 3
> >
> >)
>
> However, if I try this syntax, I get an error about an
> unexpected ';'. I've
> tried wrapping the commands in () but that doesn't help either.
>
> Is there a way to do this without having to write separate
> functions for each
> of the switch possibilities.
>
> Thanks.
>
>
> Mike
>
>
Mike,
Did you try wrapping the series of commands in braces {}:
switch(index,
{command 1; command 2; command 3}, #execute if index = 1
{command 4; command 5; command 6}, #execute if index = 2
{command 7.... } #execute if index = 3
)
Hope this is helpful,
Dan
Daniel J. Nordlund
Washington State Department of Social and Health Services
Planning, Performance, and Accountability
Research and Data Analysis Division
Olympia, WA 98504-5204
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