doubles {hyperdirichlet} | R Documentation |
Match outcomes from repeated doubles tennis matches
data(doubles)
A hyperdirichlet object corresponding to the match outcomes listed below.
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.
Doubles tennis matches at NOCS, Jan-May 2008
data(doubles)