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.lampria...@manchester.ac.uk --- On Mon, 19/7/10, Tobias Verbeke <tobias.verb...@openanalytics.eu> wrote: > From: Tobias Verbeke <tobias.verb...@openanalytics.eu> > Subject: Re: [R] split file equivalent in R > To: "Iasonas Lamprianou" <lampria...@yahoo.com> > Cc: r-help@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 > ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
