[R] summarizing replicates with multiple treatments

[Levi Waldron]

On Tue, Mar 4, 2008 at 5:32 PM, Gabor Grothendieck
<ggrothendieck at gmail.com> wrote:
> Try this:
>
>  library(doBy)
>  summaryBy(. ~ day + treat, exampledata, FUN = c(mean, sd))

Outstanding, so much better.  Thanks.