Revision 392ae21a013fb3f518e8f9eb8efb458a55a2eca2 authored by HwB on 09 April 2011, 00:00:00 UTC, committed by Gabor Csardi on 09 April 2011, 00:00:00 UTC
1 parent 162b332
vander.R
###
### VANDER.R Vandermonde matrix
###
vander <- function(x) {
n <- length(x)
if (n == 0) return(matrix(0, nrow=0, ncol=0))
if ((!is.numeric(x) && !is.complex(x)) || is.array(x))
stop("Argument 'x' must be a numeric or complex vector.")
A <- outer(x, seq(n-1, 0), "^")
return(A)
}
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