look at "?order()", e.g.,
dat[order(dat[,1]),]
will sort your data.frame wrt the first column.
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: "Mario Morales" <[EMAIL PROTECTED]>
To: <r-help@stat.math.ethz.ch>
Sent: Friday, April 01, 2005 5:22 AM
Subject: [R] a R function for sort a data frame.
Is there a R function for sort a data frame by a variable ?
I know sort a vector, but I don't know sort a data frame by a column. Can you help me ?
the sort() function don't work with data frame.
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______________________________________________ R-help@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
