[SciPy-User] How to fit parameters of beta distribution?

[John Reid]

Hi,

I can see a instancemethod scipy.stats.beta.fit. I can't work out from 
the docs how to use it. From trial & error I got the following:

In [12]: scipy.stats.beta.fit([.5])
Out[12]:
array([  1.87795851e+00,   1.81444871e-01,   2.39026963e-04,
          4.99760973e-01])

What are the 4 values output by the method?

Thanks,
John.