Re: Question about eofunc and missing data.

Any grid point that has fewer than "pcrit" (%) values
will not be included in the calculation of
the covariance matrix which is input to the LAPACK
routine that computes the EOFs.

On 2/25/11 11:50 AM, Gina Henderson wrote:
> Hi all,
>
> I am trying to understand more fully how NCL's "eofunc" function deals
> with missing data when computing EOFs. I am performing a spatial EOF
> calculation using a particular pcrit value, which I understand controls
> how much missing data at a single point is acceptable.
>
> My question is, if a point is considered "missing" and excluded from the
> EOF does this affect how many observations are used at other points? I
> think what I am asking is does "eofunc" work listwise or pairwise?
>
> Thanks in advance for any suggestions,
>
> Gina.
>
>
>
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Received on Fri Feb 25 13:37:50 2011