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From Patrick Meyer <>
Subject Re: [math] psychometrics
Date Fri, 02 Sep 2011 14:19:14 GMT
Yes, the math code is separate from the GUI and database for the most 
part. I'd be happy to share the code and documentation, but I need a few 
days to add it to a repository and get it online.

There are parts of my library that can be transferred to math with very 
few changes but other parts that need more work to make it more object 
oriented in style and less procedural. In any case, I'll send 
information about the code once I have it online.


On 9/2/2011 9:26 AM, Gilles Sadowski wrote:
> Hello.
>> I have been developing an pure Java application that does a variety
>> of psychometric methods. I use the commons math library as much as I
>> can but I've also had to develop my own library. I'd like to combine
>> the two libraries by donating as much of my code to commons math as
>> I can. My library includes features for measurement reliability,
>> test scaling, test equating, polychoric correlations, histogram
>> computations, kernel regression, etc. Most of these feature are
>> specialized to psychometrics, but is there any interest in adding
>> them to commons math? Are these methods too specialized for commons
>> math?
> Can we have a look at the code and documentation?
>> If you're interested in seeing the application in action, you can
>> download the full program from You'll notice
>> that it also uses an Apache derby database for data management.
> Is the math code separate from GUI and data management?
> Regards,
> Gilles
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