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Re: Question about tutorial in 1D Gaussian Filter [message #26070 is a reply to message #25929]

Mon, 30 July 2001 13:44

air_jlin
Messages: 22
Registered: July 2001

Junior Member

hi Cora,

coraluk@hkpc.org (Cora) wrote in message
news:<b19810c5.0107292330.37dd66aa@posting.google.com>...
> I want to use a 1D Gaussian Filter to fit a curve. After visiting the
> tutorial about 1D Curve fitting in IDL, I still found some problems in
> the function gauss1. Following are the questions:
>
> 1) What is the return of "size(x)"?
>
> 2) What is meant by "!dpi"?
>
>
> Yours,
> Cora
>
SIZE returns information (e.g. array size, type, etc.) about the variable
x. !dpi is a system variable that contains the double precision value of
pi. for more info., both are described in more detail on the online help.

best,
-Johnny

-------------------------------------------
Johnny Lin
CIRES, University of Colorado
Work Phone: (303) 735-1636
Web: http://cires.colorado.edu/~johnny/
-------------------------------------------

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[Message index]

		Question about tutorial in 1D Gaussian Filter By: coraluk on Mon, 30 July 2001 00:30
		Re: Question about tutorial in 1D Gaussian Filter By: Craig Markwardt on Tue, 31 July 2001 08:08
		Re: Question about tutorial in 1D Gaussian Filter By: coraluk on Mon, 30 July 2001 23:15
		Re: Question about tutorial in 1D Gaussian Filter By: Craig Markwardt on Mon, 30 July 2001 14:56
		Re: Question about tutorial in 1D Gaussian Filter By: air_jlin on Mon, 30 July 2001 13:44

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