[−][src]Trait vrp_core::utils::Random
Provides the way to use randomized values in generic way.
Required methods
Loading content...Provided methods
fn uniform_int(&self, min: i32, max: i32) -> i32
Produces integral random value, uniformly distributed on the closed interval [min, max]
fn uniform_real(&self, min: f64, max: f64) -> f64
Produces real random value, uniformly distributed on the closed interval [min, max)
fn is_head_not_tails(&self) -> bool
Flips a coin and returns true if it is "heads", false otherwise.
fn weighted(&self, weights: &[usize]) -> usize
Returns an index from collected with probability weight. Uses exponential distribution where the weights are the rate of the distribution (lambda) and selects the smallest sampled value.