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Re: autocorrelation with Missing Values [message #60867 is a reply to message #60856]

Wed, 18 June 2008 07:20

Craig Markwardt
Messages: 1869
Registered: November 1996

Senior Member

maffie <matthias.demuzere@geo.kuleuven.be> writes:

> Hi,
>
> I would like to perform an autocorrelation with a few missing values
> in the array (I used 'Nan' and blank spaces as missing values). Now,
> If I try the routine a_correlate, the calculated effective degrees of
> freedom results in Nan, and so is also my new correlation coefficient.
>
> Does anybody know how I can solve this?

How about removing the blank values with something like,
WHSPEC = WHERE(FINITE(SPEC), CTSPEC)
WHPRES = WHERE(FINITE(PRES), CTPRES)
and so on...

Good luck,
Craig

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Craig B. Markwardt, Ph.D. EMAIL: craigmnet@REMOVEcow.physics.wisc.edu
Astrophysics, IDL, Finance, Derivatives | Remove "net" for better response
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[Message index]

		Re: autocorrelation with Missing Values By: R.G. Stockwell on Wed, 18 June 2008 14:23
		Re: autocorrelation with Missing Values By: Craig Markwardt on Wed, 18 June 2008 07:20
		Re: autocorrelation with Missing Values By: matthias.demuzere on Wed, 18 June 2008 04:19

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