[R] split file equivalent in R

[Iasonas Lamprianou]

Thank you, I'll have a look
\
Dr. Iasonas Lamprianou


Assistant Professor (Educational Research and Evaluation)
Department of Education Sciences
European University-Cyprus
P.O. Box 22006
1516 Nicosia
Cyprus 
Tel.: +357-22-713178
Fax: +357-22-590539


Honorary Research Fellow
Department of Education
The University of Manchester
Oxford Road, Manchester M13 9PL, UK
Tel. 0044  161 275 3485
iasonas.lamprianou at manchester.ac.uk


--- On Mon, 19/7/10, Tobias Verbeke <tobias.verbeke at openanalytics.eu> wrote:

> From: Tobias Verbeke <tobias.verbeke at openanalytics.eu>
> Subject: Re: [R] split file equivalent in R
> To: "Iasonas Lamprianou" <lamprianou at yahoo.com>
> Cc: r-help at r-project.org
> Date: Monday, 19 July, 2010, 11:04
> Hi,
> 
> On 07/19/2010 11:56 AM, Iasonas Lamprianou wrote:
> 
> > (a)in SPSS PASW there is a 'split file' command is
> repeats the same analysis for all sub-groups. Is there a
> split file equivalent in R?
> 
> There is a by command in base R, but for this type of
> problems
> Hadley Wickham has written a nice package 'plyr' available
> on
> CRAN. See also the package home page:
> 
> http://had.co.nz/plyr/
> 
> HTH,
> Tobias
>