try this: mat <- matrix(rnorm(20*10), 20, 10) mat[sample(200, 10)] <- -Inf mat mat[apply(is.finite(mat), 1, all), ]
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/(0)16/336899 Fax: +32/(0)16/337015 Web: http://med.kuleuven.be/biostat/ http://www.student.kuleuven.be/~m0390867/dimitris.htm ----- Original Message ----- From: "Van Wyk, Jaap" <[EMAIL PROTECTED]> To: <r-help@stat.math.ethz.ch> Sent: Monday, August 20, 2007 2:36 PM Subject: [R] Select rows of matrix > Hi > > I would appreciate if anyone could help me with an elegant solution > of > the following: > > I have a matrix that contain a small number of -Inf values. > > How can form a new matrix from the old one that excludes all the > rows > with -Inf values ? > > > > Thank you. > > Jacob > > > > Dept of Statistics > > University of Johannesburg > > South Africa > > > > > > > [[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.
