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From Grant Ingersoll <gsing...@apache.org>
Subject Re: Dirichlet
Date Wed, 04 Mar 2009 03:28:11 GMT
What's the license on it?  Alternatively, perhaps an email to the  
authors would encourage them to donate it by opening a JIRA issue.


On Mar 3, 2009, at 10:17 PM, Jeff Eastman wrote:

> The problem with using Blog is that it is meant to be a stand-alone  
> simulation environment and we just need two (one really) of its  
> multitude of sampling classes. I also have not been able to compile  
> it into a jar file, nor have I been able to find one. It does not  
> seem to build on my Mac. Uncommons math already has Gaussian; has  
> some good random number generators; and I just need to figure out  
> how to sample from a Beta distribution with it.  The implementation  
> seems simple enough: Beta(a, b) = Gam(1, a)/(Gam(1, a)*Gam(1, b)) -  
> but I don't fully understand what I'm doing, yet.
>
> Another alternative suggested by Ted is based upon commons math, but  
> it requires some of Ted's personal extensions to support Beta.
>
> Jeff
>
>
>
>
> Grant Ingersoll wrote:
>> Are they in the Maven repo?  If they are, then we can just add the  
>> dependency that way.
>> On Mar 3, 2009, at 6:42 PM, Jeff Eastman wrote:
>>
>>> Hi Ted,
>>>
>>> I'm still trying to resolve two external dependencies on the Blog  
>>> package to get moving again on DP Clustering:
>>>
>>> import blog.distrib.Beta;
>>> import blog.distrib.UnivarGaussian;
>>>
>>> I notice we already have uncommons math in trunk and so rNorm  
>>> should be trivial. Can you suggest how to implement rBeta with it?  
>>> From the API, it is not obvious to me.
>>>
>>> Jeff
>>
>>
>>
>>
>


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