https://github.com/cran/pracma
Revision 26e049d70b4a1c237987e260cba68f6a9413736c authored by Hans W. Borchers on 09 April 2019, 04:10:07 UTC, committed by cran-robot on 09 April 2019, 04:10:07 UTC
1 parent bf07673
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Tip revision: 26e049d70b4a1c237987e260cba68f6a9413736c authored by Hans W. Borchers on 09 April 2019, 04:10:07 UTC
version 2.2.5
Tip revision: 26e049d
nextpow2.R
###
### NEXTPOW2.R  Next higher power of 2
###

nextpow2 <- function(x) {
    if (is.null(x) || length(x) == 0) return(c())
    if (!is.numeric(x) && !is.complex(x))
        stop("Argument 'x' must be a numeric/complex vector/matrix.")

    x[x == 0] <- 1
    return(ceiling(log2(abs(x))))
}
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