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Re: read ascii [message #63622 is a reply to message #10591]

Mon, 17 November 2008 06:35

David Fanning
Messages: 11724
Registered: August 2001

Senior Member

julia.walterspiel@gmail.com writes:

> I understand, that NaN has some problems with certain routines, like
> TOTAL, but obviously it also has problems with MEAN?! Whenever I have
> a "NaN" in a part of the data I want to get the mean of, the result is
> "NaN"... isn't the nice thing about working with NaN that IDL
> recognizes those "values" as bad values and ignores them in further
> calculations??
> would the other way to set all NA-data to e.g. 10000 and then continue
> working with the MAX_VALUE function the better solution here?

Have you tried setting the NAN keyword on the MEAN function?

Cheers,

David

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

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[Message index]

		Read ASCII By: DMottershead on Thu, 08 January 1998 00:00
		Re: Read ASCII By: davidf on Wed, 07 January 1998 00:00
		Re: read ascii By: David Fanning on Mon, 17 November 2008 06:35
		Re: read ascii By: julia.walterspiel on Mon, 17 November 2008 07:11
		Re: read ascii By: R.Bauer on Mon, 17 November 2008 04:32
		Re: read ascii By: julia.walterspiel on Mon, 17 November 2008 03:08
		Re: read ascii By: greg michael on Mon, 17 November 2008 02:55
		Re: read ascii By: julia.walterspiel on Mon, 17 November 2008 08:09
		Re: read ascii By: julia.walterspiel on Mon, 17 November 2008 07:43
		Re: read ascii By: R.Bauer on Mon, 17 November 2008 07:18
		Re: read ascii By: David Fanning on Mon, 17 November 2008 07:24
		Re: read ascii By: R.Bauer on Mon, 17 November 2008 07:13
		Re: read ascii By: Brian Larsen on Mon, 17 November 2008 07:14
		Re: read ascii By: David Fanning on Mon, 17 November 2008 07:13

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