Distribución uniforme (discreta)

Evaluar la distribución uniforme discreta o su inversa, generar muestras pseudoaleatorias

Funciones

`unidcdf`	Discrete uniform cumulative distribution function
`unidpdf`	Discrete uniform probability density function
`unidinv`	Discrete uniform inverse cumulative distribution function
`unidstat`	Discrete uniform mean and variance
`unidrnd`	Random numbers from discrete uniform distribution
`random`	Números aleatorios

The discrete uniform distribution is a simple distribution that puts equal weight on the integers from one to N.