Trait vrp_core::utils::Random [−][src]
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
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Produces integral random value, uniformly distributed on the closed interval [min, max]
fn uniform_real(&self, min: f64, max: f64) -> f64
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Produces real random value, uniformly distributed on the closed interval [min, max)
fn is_head_not_tails(&self) -> bool
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Flips a coin and returns true if it is “heads”, false otherwise.
fn is_hit(&self, probability: f64) -> bool
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Tests probability value in (0., 1.) range.
fn weighted(&self, weights: &[usize]) -> usize
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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.