Skip to main content

Browse the archive

Revision dc000f2a5f006d137f66716b086025d618bf8306 authored by John M Chambers on 14 July 2008, 00:00:00 UTC, committed by Gabor Csardi on 14 July 2008, 00:00:00 UTC 
version 1.0-5
1 parent 635622b
Raw File
triDiag.R 
triDiag <- function(diagonal, upper, lower,
                    nrow = length(diagonal), ncol = nrow) {
    value <- diag(diagonal, nrow, ncol)
    R <- row(value)
    C <- col(value)
    value[C == R + 1] <- upper
    value[C == R - 1] <- lower
    value
}
back to top