Struct ratel_bandit::HarmonicStepper

pub struct HarmonicStepper { /* private fields */ }

Stepper with a harmonically decreasing step size.

Stores step sizes as integers and returns their inverses when called.

Implementations

impl HarmonicStepper

pub fn new(step_size: u32, length: usize) -> HarmonicStepper

Initializes HarmonicStepper with the same step size for each bandit arm.

pub fn arms(&self) -> usize

Returns the number of arms in the bandit.

Trait Implementations

impl Stepper for HarmonicStepper

fn reset(&mut self)

Resets all step sizes to initial value.

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

Returns current step size for the given arm and increments step size for that arm.