| DISTRIB-package | Four Essential Functions for Statistical Distributions Analysis: A New Functional Approach | 
| cdf | Cumulative density function (cdf) | 
| DISTRIB | Four Essential Functions for Statistical Distributions Analysis: A New Functional Approach | 
| Probability density function (pdf) and probability mass function (pmf) | |
| q | Quantile of a distribution | 
| rd | Compute random data from a distribution |