Creating Identity Matrices
Dear Alan, here's how to define a simple nxn Identity matrix: n<-c(5) I <- matrix(0,nrow=n,ncol=n) I[row(I)==col(I)] <- 1 E.D.Isaia
"Alan T. Arnholt" wrote:
Dear R users, What is the easiest way to construct an identity matrix? Thanks. Alan
___________________________________ Alan T. Arnholt Associate Professor Dept. of Mathematical Sciences Appalachian State University Boone, NC 28608 http://www.mathsci.appstate.edu/~arnholt/ Office phone: (828) 262 - 2863 Office fax : (828) 265 - 8617 -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send "info", "help", or "[un]subscribe" (in the "body", not the subject !) To: r-help-request at stat.math.ethz.ch _._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._
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