The Asymmetric Laplace Distribution
Description
It provides the density, distribution function, quantile function,
random number generator, likelihood function, moments and Maximum Likelihood estimators for a given sample, all this for
the three parameter Asymmetric Laplace Distribution defined
in Koenker and Machado (1999). This is a special case of the skewed family of distributions
available in Galarza et.al. (2017) useful for quantile regression.