[R] Aggregating data

[David Kaplan]

The problem is that this doesn't seem to give what I want.  I did look 
at this.  Perhaps doBy will work - haven't tried it yet.  But, any other 
suggestions are much appreciated.


===========================================================================
David Kaplan, Ph.D.
Professor
Department of Educational Psychology
University of Wisconsin - Madison
Educational Sciences, Room, 1061
1025 W. Johnson Street
Madison, WI 53706

email: dkaplan at education.wisc.edu
homepage: http://www.education.wisc.edu/edpsych/facstaff/kaplan/kaplan.htm
Phone: 608-262-0836
===========================================================================

Petr Pikal wrote:
> Similar answer as last time
> 
> aggregate, tapply, by or ppackage doBy
> 
> HTH
> 
> PS. If you want to add some other text then subject in your post do 
> not use HTML posting as recommended in posting guide.
> 
> Petr
> 
> 
> On 28 Nov 2006 at 22:04, David Kaplan wrote:
> 
> Date sent:      	Tue, 28 Nov 2006 22:04:09 -0600
> From:           	David Kaplan <dkaplan at education.wisc.edu>
> To:             	r-help at stat.math.ethz.ch
> Subject:        	[R] Aggregating data
> 
>> ______________________________________________
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> 
> Petr Pikal
> petr.pikal at precheza.cz
>