Please provide reproducible code. Try this:
do.call("rbind", by(iris, iris$Species, colMeans))
On Feb 12, 2008 1:34 PM, Allen S. Rout <[EMAIL PROTECTED]> wrote:
> "Gabor Grothendieck" <[EMAIL PROTECTED]> writes:
>
> > The point is don't use cbind -- use data.frame.
>
> Is there a conventional way to use data.frame instead of cbind when
> processing a 'by'?
>
> My code is littered with:
>
> foo <- data.frame(cbind(by( /* yadda */ )))
>
> and I've had a problem similar to the Original Poster, resulting in
> some ugly reordering, so I do the as.POSIXct _after_ the
> data.frame(cbind())
>
>
>
> - Allen S. Rout
>
>
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> and provide commented, minimal, self-contained, reproducible code.
>
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