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Date: Sat, 10 Sep 2011 15:52:08 +0000 (UTC)
From: "Phil Steitz (JIRA)" <jira@apache.org>
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Subject: [jira] [Reopened] (MATH-649) SimpleRegression needs the ability to
 suppress the intercept
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     [ https://issues.apache.org/jira/browse/MATH-649?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Phil Steitz reopened MATH-649:
------------------------------


Need to update the user guide.

> SimpleRegression needs the ability to suppress the intercept
> ------------------------------------------------------------
>
>                 Key: MATH-649
>                 URL: https://issues.apache.org/jira/browse/MATH-649
>             Project: Commons Math
>          Issue Type: New Feature
>    Affects Versions: 1.2, 2.1, 2.2
>         Environment: JAVA
>            Reporter: greg sterijevski
>            Assignee: greg sterijevski
>            Priority: Minor
>              Labels: NOINTERCEPT, SIMPLEREGRESSION
>             Fix For: 3.0
>
>         Attachments: simplereg, simplereg2, simpleregtest
>
>   Original Estimate: 2h
>  Remaining Estimate: 2h
>
> The SimpleRegression class is a useful class for running regressions involving one independent variable. It lacks the ability to constrain the constant to be zero. I am attaching a patch which gives a constructor for setting NOINT. I am also checking in two NIST data sets for noint estimation. 

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