[R] Grouping problem

[hadley wickham]

You might want to have a look at the plyr package,
http://had.co.nz/plyr, which includes tools for performing this sort
of grouping.

Hadley

On Wed, Jan 28, 2009 at 9:47 AM, venkata kirankumar
<kiran4u2all at gmail.com> wrote:
> Hi all,
> I have a problem with grouping like I have to give count of employes in each
> department like
>
> if in one company there is departments like
> Mechanical, Computer, Fitting, electronics and Chemical
>
> hear I have to retreave the number of employes in each department and as
> well as
> I have to retreave number of John's in each department
>
> is there any function is there which can solve my problem
> i tried with    subset();
> but it is retreaving one department's data only
> can anyone suggest what I have to do for this
>
>
> thanks in advance
>
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>
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