| Re: FFT in a 2D variable in only one direction [message #25909] |
Tue, 24 July 2001 13:24 |
J�lio Maranh�o
Messages: 8
Registered: May 2000
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Junior Member |
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Thank you! By the way the FOR loop is just hurting me, not killing. :-)
"Craig Markwardt" <craigmnet@cow.physics.wisc.edu> escreveu na mensagem
news:onzo9vax5d.fsf@cow.physics.wisc.edu...
>
>
> Nothing comes to mind offhand. My guess is that the FOR loop is not
> going to kill you. The rule is, do a lot of processing in each
> iteration, and usually an FFT will be enough of a CPU load to
> accomplish this.
>
> Good luck!
> Craig
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| Re: FFT in a 2D variable in only one direction [message #25919 is a reply to message #25909] |
Mon, 23 July 2001 19:17  |
Craig Markwardt
Messages: 1869
Registered: November 1996
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Senior Member |
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julio_maranhao@hotmail.com (=?ISO-8859-1?Q?J=FAlio_Maranh=E3o?=) writes:
>
> I just realized that I can't use the FFT function in just one
> specific dimension. Of course I can use loops, but since the
> procedure when doing an FFT of a 2D variable is a line by line
> aproach followed by a column one, might the people from RSI
> implement this?
>
> Any hints? Or should I continue with the loops?
Nothing comes to mind offhand. My guess is that the FOR loop is not
going to kill you. The rule is, do a lot of processing in each
iteration, and usually an FFT will be enough of a CPU load to
accomplish this.
Good luck!
Craig
--
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Craig B. Markwardt, Ph.D. EMAIL: craigmnet@cow.physics.wisc.edu
Astrophysics, IDL, Finance, Derivatives | Remove "net" for better response
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