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2007 Feb 06
0
convolve: request for "usual" behaviour + some improvements + some fixes
...t; Best,
> H.
>
>
> convolve2 <- function(x, y, conj=FALSE, type=c("circular", "open", "filter"))
> {
> type <- match.arg(type)
> nx <- length(x)
> ny <- length(y)
> if (type == "circular") {
> fft_length <- max(nx, ny)
> } else {
> if (conj) {
> y <- rev(y)
> if (is.complex(y))
> y <- Conj(y)
> conj <- FALSE
> }
> nz <- nx + ny - 1
> fft_length <- 2^ceiling(log2(nz))...