Hi, I would like to select a few cases (for example cases corresponding to sex=male) to make summary for another variable. How can I do this. Thanks for your help Fawtzy
select cases
4 messages · Faouzi LYAZRHI, Dimitris Rizopoulos, Achim Zeileis +1 more
presuming that you have a data.frame look at "?subset()", e.g., # dat is your data.frame subset(dat, sex=="male") I hope it helps. Best, Dimitris ---- Dimitris Rizopoulos Ph.D. Student Biostatistical Centre School of Public Health Catholic University of Leuven Address: Kapucijnenvoer 35, Leuven, Belgium Tel: +32/16/336899 Fax: +32/16/337015 Web: http://www.med.kuleuven.ac.be/biostat/ http://www.student.kuleuven.ac.be/~m0390867/dimitris.htm ----- Original Message ----- From: "Faouzi LYAZRHI" <f.lyazrhi at envt.fr> To: <R-help at stat.math.ethz.ch> Sent: Tuesday, April 19, 2005 4:18 PM Subject: [R] select cases
Hi, I would like to select a few cases (for example cases corresponding to sex=male) to make summary for another variable. How can I do this. Thanks for your help Fawtzy
______________________________________________ R-help at stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
On Tue, 19 Apr 2005 16:18:14 +0200 Faouzi LYAZRHI wrote:
Hi, I would like to select a few cases (for example cases corresponding to sex=male) to make summary for another variable.
Look at ?tapply. E.g. tapply(x, group, summary) Z
How can I do this. Thanks for your help Fawtzy
______________________________________________ R-help at stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
subset(your.data.frame, your.data.frame$sex == 'male') cheers c
Faouzi LYAZRHI wrote:
Hi, I would like to select a few cases (for example cases corresponding to sex=male) to make summary for another variable. How can I do this. Thanks for your help Fawtzy
______________________________________________ R-help at stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html