These functions provide information about the Pareto distribution
with location parameter equal to m and dispersion equal to
s: log hazard.
(See `rmutil` for the d/p/q/r boxcox functions density,
cumulative distribution, quantiles, and random generation).
The Pareto distribution has density
$$
f(y) = \frac{\sigma }{\mu (\sigma-1)(1 + y/(\mu (\sigma-1)))^{\sigma+1}}$$
where \(\mu\) is the mean parameter of the distribution and
\(\sigma\) is the dispersion.
This distribution can be obtained as a mixture distribution from the
exponential distribution using a gamma mixing distribution.