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https://issues.apache.org/jira/browse/MATH-418?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Venkatesha Murthy TS updated MATH-418:
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Attachment: 30-may-2014-418-psquare-patch
I have incorporated almost all comments. Please find the latest patch by date
30-may-2014-418-psquare-patch.
Please suggest for further changes and i am greatly indebted to the review
comments and hope to have much less going further.
One question i have though is if i need to major algorithm part which is under
private static now; i am under the impression to provide a creation method and
expose the object as an protected interface. In order to do coverage and tests
; was forced to do this. Please help me if this is ok. Now with this i have
made sure to not impact existing instance.
Summary:
-------------
a) Modified to use appropriate exception such as NullArgumentException etc
where required
b) Turned all inner classes as private static; however keeping a thin
interfaces as protected. Even this will not impact the existing instance of
PSquaredPercentile.
c) I have cleared findbugs, checkstyle, pmd and about 93% of jacoco code
coverage.
Thanks a ton. Please let me know if i could do a quick chat over so that i can
quickly understand context and rationale of any further comments.
Regards
Venkat.
> add a storeless version of Percentile
> -------------------------------------
>
> Key: MATH-418
> URL: https://issues.apache.org/jira/browse/MATH-418
> Project: Commons Math
> Issue Type: New Feature
> Affects Versions: 2.1
> Reporter: Luc Maisonobe
> Fix For: 4.0
>
> Attachments: 30-may-2014-418-psquare-patch, 418-psquare-patch,
> psquare-patch
>
>
> The Percentile class can handle only in-memory data.
> It would be interesting to use an on-line algorithm to estimate quantiles as
> a storeless statistic.
> An example of such an algorithm is the exponentially weighted stochastic
> approximation described in a 2000 paper by Fei Chen , Diane Lambert and
> José C. Pinheiro "Incremental Quantile Estimation for Massive Tracking" which
> can be retrieved from CiteSeerX at
> [http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.105.1580].
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