chess | R Documentation |
A tally of wins and losses for games between three chess players: Topalov, Anand, Karpov.
data(chess)
(there are three chess datasets in the package, documented at
interzonal.Rd
[the 1963 World championship], kka.Rd
[Karpov-Kasparov-Anand dataset], and chess.Rd
[rock-paper-scissors using Topalov-Anand-Karpov])
This is a very simple dataset that can be used for illustration of
hyper2
idiom.
The players are:
Grandmaster Veselin Topalov. FIDE world champion 2005-2006; peak rating 2813
Grandmaster Viswanathan Anand. FIDE world champion 2000-2002, 2008; peak rating 2799
Grandmaster Anatoly Karpov. FIDE world champion 1993-1999; peak rating 2780
Observe that Topalov beats Anand, Anand beats Karpov, and Karpov beats Topalov (where “beats” means “wins more games than”).
The games thus resemble a noisy version of “rock paper scissors”.
The likelihood function does not record who played white; see
karpov_kasparov_anand
for such a dataset.
These objects can be generated by running script
inst/rock_paper_scissors.Rmd
, which includes some further
discussion and technical documentation and creates file chess.rda
which resides in the data/
directory.
File inst/ternaryplot_hyper2.Rmd
gives an example showing the
chess
likelihood function that uses
Ternary::ternaryPlot()
.
karpov_kasparov_anand
data(chess)
maxp(chess)
mgf(chess,c(Anand=2),tol = 0.1) # tolerance for speed
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