Returns a random number generator for the predictive distribution.
Parameters: | params : array-like
scale : scalar
exog : array-like
dist_class : class
Returns a frozen random number generator object with mean and : variance determined by the fitted linear model. Use the : ``rvs`` method to generate random values. : |
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Notes
Due to the behavior of scipy.stats.distributions objects, the returned random number generator must be called with gen.rvs(n) where n is the number of observations in the data set used to fit the model. If any other value is used for n, misleading results will be produced.