Take a look at the 'plyr' package; it probably does what you want.
On Wed, Jul 11, 2012 at 7:53 PM, Charles Stangor
<cstangor at charlesstangor.com> wrote:> Say I want to perform transformations on row subsets of my dataframe.
>
> Do I have to break the dataframe into subsets, perform the analysis on each
> subset, and rbind() them together again?
>
> ..or is there another way.
>
> Thank you!
>
> [[alternative HTML version deleted]]
>
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--
Jim Holtman
Data Munger Guru
What is the problem that you are trying to solve?
Tell me what you want to do, not how you want to do it.