[−][src]Trait ratel_bandit::Bandit

pub trait Bandit<T: ToPrimitive> {
    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;

    fn max_reward(&self) -> f64 { ... }

    fn means(&self) -> Vec<f64> { ... }

    fn stds(&self) -> Vec<f64> { ... }
}

A trait for common members of the Bandits

Required methods

fn arms(&self) -> usize

The number of arms of the Bandit

fn best_arm(&self) -> usize

The arm with the highest average reward.

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

The average reward of a given arm.

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

The reward from a pull of a given arm.

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

The standard deviation of a given arm.

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Provided methods

fn max_reward(&self) -> f64

The maximum average reward of all the arms.

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

The average rewards of all the arms.

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

the standard deviations of all the arms.

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Implementors

impl<'a> Bandit<f64> for ExponentialBandit<'a>[src]

fn arms(&self) -> usize[src]

Returns the number of arms on the bandit.

fn best_arm(&self) -> usize[src]

Returns the arm with highest average reward.

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

The expected return of each arm.

fn reward(&self, arm: usize) -> f64[src]

Determines the reward for pulling a given arm.

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

The standard deviations of each arm.

impl<'a> Bandit<f64> for GaussianBandit<'a>[src]

fn arms(&self) -> usize[src]

Returns the number of arms on the bandit.

fn best_arm(&self) -> usize[src]

Returns the arm with highest average reward.

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

The expected return of each arm.

fn reward(&self, arm: usize) -> f64[src]

Determines the reward for pulling a given arm.

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

The standard deviations of each arm.

impl<'a> Bandit<f64> for LogNormalBandit<'a>[src]

fn arms(&self) -> usize[src]

Returns the number of arms on the bandit.

fn best_arm(&self) -> usize[src]

Returns the arm with highest average reward.

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

The expected return of each arm.

fn reward(&self, arm: usize) -> f64[src]

Determines the reward for pulling a given arm.

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

The standard deviations of each arm.

impl<'a> Bandit<u32> for BinomialBandit<'a>[src]

fn arms(&self) -> usize[src]

Returns the number of arms on the bandit.

fn best_arm(&self) -> usize[src]

Returns the arm with highest average reward.

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

Computes the expected return of each arm.

fn reward(&self, arm: usize) -> u32[src]

Determines the reward for pulling a given arm.

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

Computes the standard deviations of each arm.

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