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https://issues.apache.org/jira/browse/MATH-939?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Piotr Wydrych updated MATH-939:
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Attachment: covariance.patch
> stat.correlation.Covariance should allow one-column matrices
> ------------------------------------------------------------
>
> Key: MATH-939
> URL: https://issues.apache.org/jira/browse/MATH-939
> Project: Commons Math
> Issue Type: Bug
> Reporter: Piotr Wydrych
> Attachments: covariance.patch
>
>
> Currently (rev 1453206), passing 1-by-M matrix to the Covariance constructor
> throws IllegalArgumentException. For consistency, the Covariance class should
> work for a single-column matrix (i.e., for a N-dimensional random variable
> with N=1) and it should return 1-by-1 covariance matrix with the variable's
> variance in its only element.
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