Functions
This function returns a random integer from the Poisson distribution with mean mu. The probability distribution for Poisson variates is,
This function computes the cumulative distribution functions P(k), Q(k) for the Poisson distribution with parameter mu.
This function computes the cumulative distribution functions P(k), Q(k) for the Poisson distribution with parameter mu.
This function computes the probability p(k) of obtaining k from a Poisson distribution with mean mu, using the formula given above.