Zipf distribution Zipf–Mandelbrot distribution Financial models with long-tailed distributions and volatility clustering Multivariate stable distribution Discrete-stable distribution Notes The STABLE program for Windows is available from John Nolan's stable webpage: http://www.robustanalysis.com/public/stable.html. It calculates the density (pdf), cumulative distribution function (cdf) and quantiles for a general stable distribution, and performs maximum likelihood estimation of stable parameters and some exploratory data analysis techniques for assessing the fit of a data set. libstable is a C implementation for the Stable distribution pdf, cdf, random number, quantile and fitting functions (along with a benchmark replication package and an R package). R Package 'stabledist' by Diethelm Wuertz, Martin Maechler and Rmetrics core team members. Computes stable density, probability, quantiles, and random numbers. Updated Sept. 12, 2016. Python implementation is located in scipy.stats.levy_stable in the SciPy package. References Continuous distributions Probability distributions with non-finite variance Power laws Stability (probability)