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https://issues.apache.org/jira/browse/MATH-694?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13157650#comment-13157650
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Phil Steitz commented on MATH-694:
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I did not reduce visibility of SecondMoment, because that statistic is used in
several places outside its package. If anyone feels strongly that it should be
renamed, please reopen and we can do that. The new name I considered was
"TotalSumOfSquares," That is a little misleading though, because it sits in
the hierarchy between the now hidden First and Third moments and carries an
embedded FirstMoment.
> Remove XxMoment statistics from the public API
> ----------------------------------------------
>
> Key: MATH-694
> URL: https://issues.apache.org/jira/browse/MATH-694
> Project: Commons Math
> Issue Type: Improvement
> Affects Versions: 1.0, 1.1, 1.2, 2.0, 2.1, 2.2
> Reporter: Phil Steitz
> Fix For: 3.0
>
>
> The Second, Third and FourthMoment statistics in
> o.a.c.m.stat.descriptive.moment are non-standard and are really just there to
> make updating more efficient in other statistics that embed them and the
> aggregates. The naming is misleading and I am not sure there is much
> independent value to these statistics, so I propose that we change them to
> have package scope in 3.0. I am happy to close this as WONT_FIX if anyone
> has objections.
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