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From Patrick Meyer <>
Subject [math] psychometrics
Date Fri, 02 Sep 2011 12:46:00 GMT
Hi All,

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?

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.

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