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# scipy.special.pdtrik

scipy.special.pdtrik(p, m, out=None) = <ufunc 'pdtrik'>

  Inverse to `pdtr` vs m.

  Parameters:
    m array_like

      Shape parameter (nonnegative, real)

    p array_like

      Probability

    out ndarray, optional

      Optional output array for the function results

  Returns:
    scalar or ndarray

      The number of occurrences k such that `pdtr(k, m) = p`

  See also

  `pdtr`

    Poisson cumulative distribution function

  `pdtrc`

    Poisson survival function

  `pdtri`

    inverse of `pdtr` with respect to m