6.3.3.2.2.6. statsmodels.sandbox.distributions.estimators.gammamomentcond2¶
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statsmodels.sandbox.distributions.estimators.
gammamomentcond2
(distfn, params, mom2, quantile=None)[source]¶ estimate distribution parameters based method of moments (mean, variance) for distributions with 1 shape parameter and fixed loc=0.
Returns: difference : array
difference between theoretical and empirical moments
Notes
first test version, quantile argument not used
The only difference to previous function is return type.