rv_discrete.isf(q, *args, **kwds)[source]

Inverse survival function (1-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.