On Mon, 2004-02-23 at 18:53, li xian wrote: > How to get the sum of the diag of matrix? > Thanks!
If 'm' is your matrix: sum(diag(m)) See ?sum and ?diag, the latter of which will extract the diagonal of the matrix. Be sure to read the help for diag() fully for some of the usage caveats. HTH, Marc Schwartz ______________________________________________ [EMAIL PROTECTED] mailing list https://www.stat.math.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
