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From "Gilles (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MATH-485) Feature Request: Kalman Filter
Date Tue, 14 Jun 2011 11:41:47 GMT

    [ https://issues.apache.org/jira/browse/MATH-485?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13049135#comment-13049135
] 

Gilles commented on MATH-485:
-----------------------------

It's a pity that Eclipse would automatically reformat a whole existing file! As people quite
possibly use different editors and formatting tools, this could lead to flip-flop of formatting
changes...
Seeing what comes out of the template you have used, it seems best to do the formatting by
hand.

CheckStyle was not complaining about empty lines but lines that end with one or more space
characters. Again a single space after the '*' character in a Javadoc comment is probably
automatically created by Eclipse. Maybe the CheckStyle rule should be relaxed to allow trailing
spaces in comments...

I think that an 80-character line should not be a hard limit. If there remains only a few
characters to finish a statement, I prefer a longer line.
When the line is really going to be too long, I always try to figure out a layout that will
not be too "unnatural".


> Feature Request: Kalman Filter
> ------------------------------
>
>                 Key: MATH-485
>                 URL: https://issues.apache.org/jira/browse/MATH-485
>             Project: Commons Math
>          Issue Type: Wish
>            Reporter: Benjamin McCann
>             Fix For: 3.0
>
>         Attachments: KalmanFilterExample.java, MATH-485-cleanup.patch, MATH-485-update1.patch,
MATH-485.patch
>
>
> I'd love it if Commons Math could add support for the Kalman filter.  Here are a few
implementations that might be able to be used for reference or included if they're using compatible
licenses:
> http://code.google.com/p/efficient-java-matrix-library/wiki/KalmanFilterExamples
> http://mathstat.asu.edu/~eubank/
> http://www.fit.vutbr.cz/research/prod/index.php.en?id=53&notitle=1
> http://sourceforge.net/projects/jkalman/
> http://www.vni.com/products/imsl/jmsl/v30/api/com/imsl/stat/KalmanFilterEx1.html

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