[SciPy-User] Rician distributions lacks sigma parameter

Morten Kjeldgaard mok@bioxray...
Wed Apr 4 02:00:49 CDT 2012


I am a new reader of this list, please forgive me if this issue has  
already discussed.

I have been wanting to use the rician distribution (stats.rice) to  
analyze some data, but it seems that the implementation in scipy does  
not take the distribution's sigma parameter into account; rather, it  
has been set to 1.0. The wikipedia article shows the traditional  
formulation of the rician distribution [0].

I understand that some distributions, e.g. stats.norm, use the scale  
parameter to define std, but this does not seem to be the case with  

Any ideas on how to get around this, without actually modifying  
distribution.py? I have no experience with the internals of scipy, and  
wouldn't know how to modify it correctly.


[0] http://en.wikipedia.org/wiki/Rice_distribution

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