volleyball | R Documentation |
Results from the NOCS volleyball league. Object
volleyball_table
is a matrix in which each column corresponds to
a player and each row corresponds to a volleyball set; volleyball
is the corresponding likelihood function in the form of a hyper2
distribution.
data(volleyball)
A volleyball set is a Bernoulli trial between two disjoint subsets of
the players. The two subsets are denoted (after the game) as the
“winners” and the “losers”: these are denoted by 1
and 0
respectively.
Thus the first line reads of volleyball_results
reads:
p1 p2 p3 p4 p5 p6 p7 p8 p9 1 0 NA 1 0 0 NA 1 NA
showing that the teams were p1
, p4
and p8
against
p2
, p5
and p6
; players p3
, p7
and
p9
did not play.
These datasets illustrate the fact that such Bernoulli trials are only weakly informative.
These objects can be generated by running script
inst/volleyball.Rmd
, which includes some further discussion and
technical documentation and creates file volleyball.rda
which
resides in the data/
directory.
Volleyball games at NOCS, 2006-2008
Robin K. S. Hankin (2010). “A Generalization of the Dirichlet Distribution”, Journal of Statistical Software, 33(11), 1-18
volleyball == volley(volleyball_table) # should be TRUE
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