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From Greg Sterijevski <gsterijev...@gmail.com>
Subject Re: [math] psychometrics
Date Sat, 03 Sep 2011 16:36:26 GMT
Do you have unit tests written for the different components?

On Sat, Sep 3, 2011 at 10:48 AM, Patrick Meyer <meyerjp3@gmail.com> wrote:

> Sounds good. Separating the general purpose stats from the psychometric
> specific stats seems like a natural way to distinguish the two libraries.
> I'll send a link to the source code soon. Hopefully, you will see the good
> ideas in the code.
>
>
> On 9/3/2011 12:57 AM, Phil Steitz wrote:
>
>> On 9/2/11 7:19 AM, Patrick Meyer wrote:
>>
>>> 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.
>>>
>> Don't worry too much about making things beautiful.  Bad code + good
>> ideas is the combination that works [1].  The thing to think about
>> is what portions of your code are really general purpose math.  Most
>> likely kernel regression, polycor, histograms, etc., maybe not so
>> much test scaling for example.   Luc may have some good advice
>> having done this already with an space dynamics library (or maybe
>> Luc is so smart that there was no refactoring necessary :)
>>
>> What tends to work best is to bring things in incrementally, talking
>> about the fit and how to integrate.
>>
>> Phil
>>
>> [1] http://s.apache.org/hZ
>>
>>> Patrick
>>>
>>> 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 www.ItemAnalysis.com. 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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