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Re: IDL QUESTIONS (INTERPOLATION) [message #78479 is a reply to message #78366]

Wed, 23 November 2011 06:27

David Fanning
Messages: 11724
Registered: August 2001

Senior Member

zolile mtumela writes:

> I was doing FFT on this data, but I am getting fun spectrum. In the
> data there are some big values(they look like outliers). Could I try
> remove those big values in order to plot FFT.

You could try. Then you have the bigger problem of
having to justify why you did it. :-)

> Maybe I have to apply hanning window to get right spectrum, Any
> suggestions are much welcome.

There are any number of filters that allow you to smooth data,
if that is what you want to do. It is faster to try a couple
than it is to talk about them.

Cheers,

David

--
David Fanning, Ph.D.
Fanning Software Consulting, Inc.
Coyote's Guide to IDL Programming: http://www.idlcoyote.com/
Sepore ma de ni thui. ("Perhaps thou speakest truth.")

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[Message index]

		IDL QUESTIONS (INTERPOLATION) By: zolile mtumela on Mon, 21 November 2011 05:59
		Re: IDL QUESTIONS (INTERPOLATION) By: Brian Wolven on Wed, 23 November 2011 09:58
		Re: IDL QUESTIONS (INTERPOLATION) By: David Fanning on Wed, 23 November 2011 06:27
		Re: IDL QUESTIONS (INTERPOLATION) By: zolile mtumela on Wed, 23 November 2011 05:47
		Re: IDL QUESTIONS (INTERPOLATION) By: zolile mtumela on Tue, 22 November 2011 06:13
		Re: IDL QUESTIONS (INTERPOLATION) By: David Fanning on Tue, 22 November 2011 05:26
		Re: IDL QUESTIONS (INTERPOLATION) By: David Fanning on Tue, 22 November 2011 05:21
		Re: IDL QUESTIONS (INTERPOLATION) By: zolile mtumela on Mon, 21 November 2011 23:12
		Re: IDL QUESTIONS (INTERPOLATION) By: zolile mtumela on Mon, 21 November 2011 22:37
		Re: IDL QUESTIONS (INTERPOLATION) By: zolile mtumela on Mon, 21 November 2011 12:34

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