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# scikits.statsmodels.discretemod.Poisson.pdf

`Poisson.``pdf`(X)

  Poisson model probability mass function

  Parameters: | X : array-like X is the linear predictor of the model. See notes.
  Returns: | The value of the Poisson PMF at each point. :

  Notes

  The PMF is defined as

  where assumes the loglinear model. I.e.,

  The parameter X is in the above formula.

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