Cumulative distribution function at x of the given RV.
x : array-like
quantiles
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)
scale : array-like, optional
scale parameter (default=1)
cdf : array-like
Cumulative distribution function evaluated at x
scipy.stats.rv_continuous.pdf
scipy.stats.rv_continuous.sf