Trait ratel_bandit::Bandit

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pub trait Bandit<T: ToPrimitive> {
    // Required methods
    fn arms(&self) -> usize;
    fn best_arm(&self) -> usize;
    fn mean(&self, arm: usize) -> f64;
    fn reward(&self, arm: usize) -> T;
    fn std(&self, arm: usize) -> f64;

    // Provided methods
    fn max_reward(&self) -> f64 { ... }
    fn means(&self) -> Vec<f64> { ... }
    fn stds(&self) -> Vec<f64> { ... }
}
Expand description

A trait for common members of the Bandits

Required Methods§

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fn arms(&self) -> usize

The number of arms of the Bandit

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fn best_arm(&self) -> usize

The arm with the highest average reward.

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fn mean(&self, arm: usize) -> f64

The average reward of a given arm.

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fn reward(&self, arm: usize) -> T

The reward from a pull of a given arm.

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fn std(&self, arm: usize) -> f64

The standard deviation of a given arm.

Provided Methods§

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fn max_reward(&self) -> f64

The maximum average reward of all the arms.

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fn means(&self) -> Vec<f64>

The average rewards of all the arms.

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fn stds(&self) -> Vec<f64>

the standard deviations of all the arms.

Implementors§