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From "Gilles (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MATH-1270) SOFM: Implement various visualization algorithms
Date Thu, 17 Sep 2015 22:17:04 GMT

    [ https://issues.apache.org/jira/browse/MATH-1270?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14804628#comment-14804628
] 

Gilles commented on MATH-1270:
------------------------------

Visualization of quantization error implemented in commits:
* 7929e10a8f8bbb43672b4a695b68a1e1fd8ad40e (3.6)
* 924e1e9064f90d958b4f57e9c9c0c543bd19dcfb (4.0)


> SOFM: Implement various visualization algorithms
> ------------------------------------------------
>
>                 Key: MATH-1270
>                 URL: https://issues.apache.org/jira/browse/MATH-1270
>             Project: Commons Math
>          Issue Type: Wish
>            Reporter: Gilles
>            Assignee: Gilles
>            Priority: Minor
>             Fix For: 4.0, 3.6
>
>
> There are various ways for visualizing the properties of a SOFM:
> * U-matrix
> * Topographic error
> * Hit histogram
> * Smoothed data histograms
> * ...
> Some are currently implemented in {{MapUtils}}, but they should be defined in their own
class, implementing interfaces proposed in MATH-1268.



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