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From: Andrei Makeev on 29 Jan 2010 15:50
Hello,

is there a C/C++, Fortran, or Python library for
calculating a Fourier Transform of a logarithmically-binned
times series? Unfortunately FFTW C-library is only good
for uniformly-spaced time series.

Thank you!
~Andrei.
From: Nicholas Kinar on 29 Jan 2010 17:57
On 29/01/2010 2:50 PM, Andrei Makeev wrote:
> Hello,
>
> is there a C/C++, Fortran, or Python library for
> calculating a Fourier Transform of a logarithmically-binned
> times series? Unfortunately FFTW C-library is only good
> for uniformly-spaced time series.
>
> Thank you!
> ~Andrei.


Not that I know of, but you may wish to take a look at a 1998 paper
which describes how to implement a logarithmic fourier transform:

http://www.dias.ie/~ajones/papers/28.pdf

Since it was written by researchers at the Geological Survey of Canada,
I would bet that you could possibly request source code in either
FORTRAN or C from this organization.

You *may* have to write this yourself, since such a library may not
exist. IMHO, the paper is clearly written.


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