Re: [R] help on data frame and matrix
John == John Kane [EMAIL PROTECTED] on Sun, 17 Sep 2006 12:10:19 -0400 (EDT) writes: John --- Finosaur [EMAIL PROTECTED] wrote: I am given a data frame, which actually contains a matrix. But I need to convert the data frame into a matrix so that I can use the matrix operators. Can anybody help me out? Thanks a lot. Thaleia John d - as.matrix(data.frame) It's (almost always) better to use Dimitri's suggestion, data.matrix(), since that also produces a numeric matrix when the data frame contains factors. Martin __ 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 and provide commented, minimal, self-contained, reproducible code.
Re: [R] help on data frame and matrix
look at ?data.matrix() Best, Dimitris Dimitris Rizopoulos Ph.D. Student Biostatistical Centre School of Public Health Catholic University of Leuven Address: Kapucijnenvoer 35, Leuven, Belgium Tel: +32/(0)16/336899 Fax: +32/(0)16/337015 Web: http://med.kuleuven.be/biostat/ http://www.student.kuleuven.be/~m0390867/dimitris.htm Quoting Finosaur [EMAIL PROTECTED]: Hey, I am given a data frame, which actually contains a matrix. But I need to convert the data frame into a matrix so that I can use the matrix operators. Can anybody help me out? Thanks a lot. Thaleia [[alternative HTML version deleted]] __ 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 and provide commented, minimal, self-contained, reproducible code. Disclaimer: http://www.kuleuven.be/cwis/email_disclaimer.htm __ 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 and provide commented, minimal, self-contained, reproducible code.
Re: [R] help on data frame and matrix
--- Finosaur [EMAIL PROTECTED] wrote: I am given a data frame, which actually contains a matrix. But I need to convert the data frame into a matrix so that I can use the matrix operators. Can anybody help me out? Thanks a lot. Thaleia d - as.matrix(data.frame) __ 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 and provide commented, minimal, self-contained, reproducible code.
