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From "Luc Maisonobe (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MATH-887) "AbstractLeastSquares" cleanup
Date Tue, 30 Oct 2012 08:28:25 GMT

    [ https://issues.apache.org/jira/browse/MATH-887?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13486734#comment-13486734
] 

Luc Maisonobe commented on MATH-887:
------------------------------------

This seems a good idea. Probably not easy to do, though.
                
> "AbstractLeastSquares"  cleanup
> -------------------------------
>
>                 Key: MATH-887
>                 URL: https://issues.apache.org/jira/browse/MATH-887
>             Project: Commons Math
>          Issue Type: Task
>    Affects Versions: 3.0
>            Reporter: Gilles
>            Assignee: Gilles
>            Priority: Minor
>              Labels: api-change
>             Fix For: 3.1, 4.0
>
>
> Class "AbstractLeastSquares" (in package "o.a.c.m.optimization.general") has a lot of
"protected" fields that are modified by its subclasses (e.g. "LevenbergMarquardt"). This decreases
encapsulation which in turn makes the code more difficult to understand and modify.
> I propose to deprecate (in 3.1) and remove or make "private" (in 4.0) all fields that
could be hidden or should be modified through setter methods.
> Part of the code could also be more readable (and self-documenting) by making use of
higher-level constructs such as "RealMatrix" rather than using explicit loops.

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