Comment by tgv

I think they should be functions: G(50, 1) for a Gaussian with µ=50, σ=1; N(3) for a negative exponential with λ=3, U(0, 1) for a uniform distribution between 0 and 1, UI(1, 6) for an uniform integer distribution from 1 to 6, etc. Seems much more flexible, and easier to remember.