net.viktorc.detroid.framework.validation

Class Elo

Object

Elo

public final class Elo
extends Object

A utility class for calculating Elo score differences based on match statistics such as the win ratio or the numbers of wins, losses, and draws.

Author:

Viktor

Method Summary

Modifier and Type	Method and Description
static int	calculateDifference(double winRatio) Calculates the Elo rating difference between a player and its opponent based on the win ratio against this opponent.
static int	calculateDifference(int wins, int losses, int draws) Calculates the Elo rating difference between a player and its opponent based on the match record against this opponent.

Methods inherited from class Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

calculateDifference

public static int calculateDifference(int wins,
                                      int losses,
                                      int draws)

Calculates the Elo rating difference between a player and its opponent based on the match record against this opponent.

Parameters:

wins - The number of wins. It has to be 0 or greater.

losses - The number of losses. It has to be 0 or greater.

draws - The number of draws. It has to be 0 or greater.

Returns:

The Elo rating difference.

calculateDifference

public static int calculateDifference(double winRatio)

Calculates the Elo rating difference between a player and its opponent based on the win ratio against this opponent.

Parameters:

winRatio - The win ratio. It has to between 0 and 1.

Returns:

The Elo rating difference.