You are correct, passing in a text string works.

Thanks for a great package




hadley wickham <h.wickham@gmail.com> 
Sent by: manipulatr@googlegroups.com
04/07/09 10:32 AM
Please respond to
manipulatr@googlegroups.com


To
ryan.sheftel@malbecpartners.com
cc
manipulatr@googlegroups.com, r-help@r-project.org
Subject
Re: Using as.formula() with the reshape package cast






On Tue, Apr 7, 2009 at 8:44 AM,  <ryan.sheftel@malbecpartners.com> wrote:
>
> I am trying to use the "cast" function from the reshape package, where 
the
> formula is not passed in directly, but as the result of the as.formula()
> function.
>
> Using reshape v. 0.7.2
>
> I am able to properly melt() by data with:
>
>> molten <- melt(x, id=1:2)
>
> then I can properly cast with this:
>
>> cast(molten, days ~ variable)
>
> but if I try
>
>> cast(molten, as.function("days ~ variable"))

You're calling as.function ;)  Also, I think you should be able to
pass the string directly - reshape will convert it to a formula for
you.

Hadley


-- 
http://had.co.nz/

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