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Re: segment vector with missing data [message #63364 is a reply to message #63359]

Tue, 04 November 2008 13:28

David Fanning
Messages: 11724
Registered: August 2001

Senior Member

Chad Bender writes:

> This should be an easy problem, but I'm having a hard time figuring it
> out without using a bunch of loops. I've got a vector with N-elements
> (typically N~1000, but could be any number), with some NaNs
> interspersed. Typically, there will be a block of NaNs together, but
> a single NaN by itself is also possible. I want to extract the short
> segments of good data, and their corresponding indices from the
> original vector.

How about this:

goodIndices = Where(Finite(array) EQ 0, COMPLEMENT=badIndices)

The goodIndices finds all the good data, the badIndices
finds all the NANs.

Cheers,

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

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[Message index]

		Re: segment vector with missing data By: Chad on Tue, 04 November 2008 13:51
		Re: segment vector with missing data By: Jean H. on Tue, 04 November 2008 13:30
		Re: segment vector with missing data By: Brian Larsen on Tue, 04 November 2008 13:47
		Re: segment vector with missing data By: Chad on Tue, 04 November 2008 13:37
		Re: segment vector with missing data By: David Fanning on Tue, 04 November 2008 13:30
		Re: segment vector with missing data By: David Fanning on Tue, 04 November 2008 13:28
		Re: segment vector with missing data By: Chad on Tue, 04 November 2008 13:17

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