Re: How to deal with the missing data

• Subject: Re: How to deal with the missing data
• From: Sione <sionep@xxxxxxxxxx>
• Date: Tue, 31 Oct 2006 16:21:28 +1300

Wang Lizhi wrote:

>Hi,
>
>I want to display some 2D/3D data, but I'm not sure whether visad can deal 
>with the missing data, or how to do it?
>
>thanks
>##########################################################################
>
>  WANG Lizhi
>  
>

Wang,

If you want to fill in missing data, then look at his paper which
describes of how to do that, which comes with Matlab codes of the
algorithm. The paper and the Matlab codes are available from the
following page.

"Analysis of incomplete datasets: Estimation of mean values and
covariance matrices and imputation of missing values"
http://www.gps.caltech.edu/~tapio/imputation/index.html

The codes could be easily ported to Java using JAMA which is already
part of the VisAD API. If you're going to port the Matlab codes, you can
email me offline, where I can give you a hand in there.

Cheers,
Sione.



>  
>

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• References:
  • How to deal with the missing data
    • From: Wang Lizhi