Re: [R] quesion on diag of matrix

2004-02-23 Thread Marc Schwartz
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,

Re: [R] quesion on diag of matrix

2004-02-23 Thread Spencer Graves
A - array(1:4, dim=c(2,2)) sum(diag(A)) [1] 5 Is that what you want? spencer graves li xian wrote: How to get the sum of the diag of matrix? Thanks! - [[alternative HTML version deleted]] __ [EMAIL

Re: [R] quesion on diag of matrix

2004-02-23 Thread Jean Eid
sum(diag(X)) On Mon, 23 Feb 2004, li xian wrote: How to get the sum of the diag of matrix? Thanks! - [[alternative HTML version deleted]] __ [EMAIL PROTECTED] mailing list