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# scikits.statsmodels.glm.GLM.estimate_scale

`GLM.``estimate_scale`(mu)

  Estimates the dispersion/scale.

  Type of scale can be chose in the fit method.

  Parameters: | mu : array mu is the mean response estimate
  Returns: | Estimate of scale :

  See also

  `statsmodels.glm.fit`

  Notes

  The default scale for Binomial and Poisson families is 1. The default for the other families is Pearson’s Chi-Square estimate.

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