?ifelse -- Gregory (Greg) L. Snow Ph.D. Statistical Data Center Intermountain Healthcare [EMAIL PROTECTED] (801) 408-8111
> -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of Armelini, Guillermo > Sent: Wednesday, December 19, 2007 10:21 AM > To: [EMAIL PROTECTED] > Subject: [R] question > > Hello everyone! > > Is anybody can help me to solve this silly question that > unfortunately I haven't found the right way to address it. > > Supose I have a matrix X[n,n] dimension > > I would like to calculate the product of the vectors > > Y=X[1,n]*X[n,1] > > Then I would like to run the following operation > > H=if(Y>0) {H[,1]=1} > > The problem is that the condition "if" works only for the > first element of the matrix. > > Does anybody knows how to apply the conditional "if" to a > entire vector? > > cheers > > Guillermo > > > > This message has been scanned for viruses by TRENDMICRO, an > IESE technology affiliate company and global leader in > antivirus and content security software. > > ______________________________________________ > 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. > ______________________________________________ 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.
