swh:1:snp:a4c99a50dc49f82b591f268001b320f8c3ca0041
Tip revision: 698183c35adc80e5e08cb2ef09ed13dc3c445a97 authored by John M Chambers on 12 June 2014, 00:00:00 UTC
version 1.0-6
version 1.0-6
Tip revision: 698183c
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
}