| g01bkc | Poisson distribution function |
| g01skc | Computes a vector of the Poisson distribution |
| g02gcc | Fits a generalized linear model with Poisson errors |
| g05tjc | Generates a vector of pseudorandom integers from a Poisson distribution |
| g05tkc | Generates a vector of pseudorandom integers from a Poisson distribution with varying mean |
| g07abc | Computes confidence interval for the parameter of a Poisson distribution |