Ranking.Glicko.Inference

This module provides functions for predicting the outcome of a game between two players.

Example usage:

>>> :l test/Paper.hs
>>> :m + Data.Default
>>> let p1:p2:_ = compute players matches def
>>> p1
Player { playerId = 1
       , playerRating = 1464.0506705393013
       , playerDev = 151.51652412385727
       , playerVol = 5.9995984286488495e-2
       , playerInactivity = 0
       , playerAge = 1 }
>>> p2
Player { playerId = 2
       , playerRating = 1398.1435582337338
       , playerDev = 31.67021528115062
       , playerVol = 5.999912372888531e-2
       , playerInactivity = 0
       , playerAge = 1 }
>>> predict p1 p2
0.5732533698644847     -- Player 1 has a 57.3% chance of winning a single game.
>>> let Just f = boX 5
>>> predictBoX f p1 p2
0.6353973157904573     -- Player 1 has a 63.5% chance of winning a best-of-five match.

Documentation

predict

Arguments

:: Player 1

Player A

-> Player 1

Player B

-> Double

Computes the probability that Player A wins against Player B

predictBoX :: BoX -> Player 1 -> Player 1 -> Double

Same as predict, but computes the probability that Player A wins a match played as best-of-X games.

data BoX

Represents a match played as best-of-X games.

Instances

Show BoX

Defined in Ranking.Glicko.Inference

Methods

showsPrec :: Int -> BoX -> ShowS

show :: BoX -> String

showList :: [BoX] -> ShowS

boX :: Integer -> Maybe BoX

Create a best-of-X match

fromBoX :: BoX -> Integer

Destruct a best-of-X match