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From "Gilles (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (MATH-1353) "EmpiricalDistribution" has various shortcomings
Date Sat, 22 Apr 2017 16:26:04 GMT

     [ https://issues.apache.org/jira/browse/MATH-1353?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Gilles updated MATH-1353:
-------------------------
    Fix Version/s:     (was: 4.X)
                   4.0

> "EmpiricalDistribution" has various shortcomings
> ------------------------------------------------
>
>                 Key: MATH-1353
>                 URL: https://issues.apache.org/jira/browse/MATH-1353
>             Project: Commons Math
>          Issue Type: Improvement
>            Reporter: Gilles
>            Priority: Minor
>              Labels: refactoring
>             Fix For: 4.0
>
>
> * Class uses file IO (CM should not be concerned with data persistence)
> * Class uses the "java.net" API (ditto)
> I'd think that the core functionality could be provided without supporting data loading
(from a file or a URL).
> Data input would be via any of
> * Collection
> * Iterable
> * Stream (Java 8)
> A redesign goal should be to make the class immutable.
> E.g. data source must be set in the constructor (rather than via a "load" method); there
would thus be a one-to-one correspondence between data source and distribution instance.



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