[R] triangular matrix

[ben@zoo.ufl.edu]

  Here's a way:

tmpmat <- function(a,n) {
  x <- matrix(a,nrow=n,ncol=n)
  x <- x^pmax(0,row(x)-col(x))
  x[row(x)<col(x)] <- 0
  x
}


-- 
318 Carr Hall                                bolker at zoo.ufl.edu
Zoology Department, University of Florida    http://www.zoo.ufl.edu/bolker
Box 118525                                   (ph)  352-392-5697
Gainesville, FL 32611-8525                   (fax) 352-392-3704

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