Displaying 2 results from an estimated 2 matches for "xfft".
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2019 Feb 14
0
Proposed speedup of spec.pgram from spectrum.R
...ix(0, nrow = N * pad, ncol = ncol(x)))
N <- nrow(x)
}
NewN <- if(fast) nextn(N) else N
x <- rbind(x, matrix(0, nrow = (NewN - N), ncol = ncol(x)))
N <- nrow(x)
Nspec <- floor(N/2)
freq <- seq.int(from = xfreq/N, by = xfreq/N, length.out = Nspec)
xfft <- mvfft(x)
pgram <- array(NA, dim = c(N, ncol(x), ncol(x)))
for (i in 1L:ncol(x)) {
for (j in i:ncol(x)) { # N0 = #{non-0-padded}
pgram[, i, j] <- xfft[, i] * Conj(xfft[, j])/(N0*xfreq)
## value at zero is invalid as mean has been removed, so
interp...
2012 Dec 15
1
virt-resize Fatal error: exception Guestfs.Error("e2fsck_f
...16\xb4\x02\xb0\x01\xbb\x00|\xb2\x80\x8at\x01\x8bL\x02\xcd\x13\xea\x00|\x00\x00\xeb\xfe\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x01\x00\x00\x00\x00\x00\x00\x00\xff\xfa\x90\x90\xf6\xc2\x80t\x05\xf6\xc2pt\x02\xb2\x80\xeay|\x00\x001\xc0\x8e\xd8\x8e\xd0\xbc\x00 \xfb\xa0d|<\xfft\x02\x88\xc2R\xbb\x17\x04\x80'\x03t\x06\xbe\x88}\xe8\x17\x01\xbe\x05|\xb4A\xbb\xaaU\xcd\x13ZRr=\x81\xfbU\xaau7\x83\xe1\x01t21\xc0\x89D\x04@\x88D\xff\x89D\x02\xc7\x04\x10\x00f\x8b\x1e\|f\x89\\x08f\x8b\x1e`|f\x89\\x0c\xc7D\x06\x00p\xb4B\xcd\x13r\x05\xbb\x00p\xebv\xb4\x08\xcd\x13s\x0d\xf6\xc2\x80\x...