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fet2
2007 May 02
1
Is R's fast fourier transform function different from "fft2" in Matlab?
Hi All,
I found "mvfft" in R and "fft2" in Matlab give different result
and can't figure out why. My example is:
In R:
> matrix(c(1,4,2,20), nrow=2)
[,1] [,2]
[1,] 1 2
[2,] 4 20
> mvfft(matrix(c(1,4,2,20), nrow=2))
[,1] [,2]
[1,] 5+0i 22+0i
[2,] -3+0i -18+0i
In Matlab:
>fft2([1,2;4,20])
ans...