// Normal (μ = 0, σ = 1.0)
var f = Prob.normal(0, 1.0);
// Uniform (min = 0, max = 1.0)
var f = Prob.uniform(0, 1.0);
// Exponential (λ = 1.0)
var f = Prob.exponential(1.0);
// Log-normal (μ = 0, σ = 1.0)
var f = Prob.lognormal(0, 1.0);
// Zipf (s = 1, N = 10)
var f = Prob.zipf(1, 10);