doubles {hyperdirichlet} | R Documentation

## Match outcomes from repeated doubles tennis matches

### Description

Match outcomes from repeated doubles tennis matches

### Usage

    data(doubles)

### Format

A hyperdirichlet object corresponding to the match outcomes listed below.

### Details

There are four players, p1 to p4. These players play doubles tennis matches with the following results:

match | score
{p1,p2} vs {p3,p4} | 9-2
{p1,p3} vs {p2,p4} | 4-4
{p1,p4} vs {p2,p3} | 6-7
{p1} vs {p3} | 10-14
{p2} vs {p3} | 12-14
{p1} vs {p4} | 10-14
{p2} vs {p4} | 11-10
{p3} vs {p4} | 13-13

It is suspected that p1 and p2 have some form of team cohesion and play better when paired than when either solo or with other players. As the scores show, each player and, apart from p1-p2, each doubles partnership, is of approximately the same strength.

Dataset `doubles_noghost` gives the appropriate likelihood function for the players' strengths; and dataset `doubles` gives the appropriate likelihood function if the extra strength due to team cohesion of {p1,p2} is represented by a ghost player.

### Source

Doubles tennis matches at NOCS, Jan-May 2008

### Examples

    data(doubles)

[Package hyperdirichlet version 1.3-8 Index]