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scipy.stats.rv_discrete.

# isf

rv_discrete.isf(q, *args, **kwds)

  Inverse survival function (inverse of `sf`) at q of the given RV.

  Parameters:
    q array_like

      Upper tail probability.

    arg1, arg2, arg3,…array_like

      The shape parameter(s) for the distribution (see docstring of the instance object for more information).

    loc array_like, optional

      Location parameter (default=0).

  Returns:
    k ndarray or scalar

      Quantile corresponding to the upper tail probability, q.