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https://issues.apache.org/jira/browse/MATH-1023?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13757492#comment-13757492
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Gilles commented on MATH-1023:
------------------------------
bq. it must be activated before any data has been added - i.e., before any
calls to addValue.
When I read that, I assume that the call is part of the initialization, and
that "addValue" will fail if I have not called "setXxxxImpl". This is harmless,
as people who read the doc will just write unnecessary code... (I wrote the
code before, and observed that it didn't raise as the doc would seem to imply).
Simply adding your explanation above would clarify a lot IMO.
> Javadoc in "SummaryStatistics" ("o.a.c.m.stat.descriptive")
> -----------------------------------------------------------
>
> Key: MATH-1023
> URL: https://issues.apache.org/jira/browse/MATH-1023
> Project: Commons Math
> Issue Type: Improvement
> Affects Versions: 3.2
> Reporter: Gilles
> Priority: Trivial
> Labels: documentation
>
> The documentation for methods "set...Impl(...)" indicates:
> ---
> This method must be activated before any data has been added - i.e., before
> addValue has been used to add data; otherwise an IllegalStateException will
> be thrown.
> ---
> However, every instance is created with default implementations; the warning
> is thus obsolete.
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