Struct Rater 

pub struct Rater { /* private fields */ }

Rater is used to calculate rating updates given the β-parameter.

Implementations

impl Rater

pub const fn new(beta: f64) -> Rater

This method instantiates a new Rater with the given β-parameter.

impl Rater

pub fn update_ratings<Ranks>( &self, teams: &mut [&mut [&mut Rating]], ranks: Ranks, ) -> Result<(), BBTError>

where Ranks: AsRef<[usize]>,

This method takes a mutable slice of teams, with each team being a mutable slice of (mutable) player ratings, and a slice, Vec or array of usize ranks of the same size. The ranks specify the ranking of the corresponding team in the game (1st, 2nd, etc.). The ratings are updated in place.

Returns Err(BBTError) if the input is incorrect, otherwise Ok(()).

pub fn duel(&self, p1: &mut Rating, p2: &mut Rating, outcome: Outcome)

This method calculates the new ratings for two players after a head-to-head duel. The outcome is from the first player p1’s perspective, i.e. Win if the first player won, Loss if the second player won and Draw if neither player won. The ratings are updated in place.

Trait Implementations

impl Clone for Rater

fn clone(&self) -> Rater

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Rater

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for Rater

fn default() -> Rater

This method instantiates a new Rater with the default β-parameter of 25.0/6.0 used in the paper.

impl Display for Rater

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Copy for Rater