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Re: FFT of gaussian [message #74382]

Wed, 12 January 2011 12:20

Mark Piper
Messages: 198
Registered: December 2009

Senior Member

On Jan 12, 10:42 am, Gray <grayliketheco...@gmail.com> wrote:
>
> Ah, the shift(abs()) helped very much! Thanks :)

A small aside: the CENTER keyword was added to FFT in IDL 7.1. With
it, the last two lines of Ken's example become:

IDL> yt = fft(y, /center)
IDL> plot, abs(yt)

I always disliked having to shift the Fourier coefficients.

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[Message index]

		Re: FFT of gaussian By: Mark Piper on Wed, 12 January 2011 12:20
		Re: FFT of gaussian By: Gray on Wed, 12 January 2011 09:42
		Re: FFT of gaussian By: Kenneth P. Bowman on Wed, 12 January 2011 06:28

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