countsToBinomial: Convert Contingency Table of Wins to Binomial Counts
In BradleyTerry2: Bradley-Terry Models

Description Usage Arguments Value Author(s) See Also Examples

Convert a contingency table of wins to a four-column data frame containing the number of wins and losses for each pair of players.

1	countsToBinomial(xtab)

xtab

a contingency table of wins cross-classified by “winner” and “loser”

A data frame with four columns

`player1`	the first player in the contest.
`player2`	the second player in the contest.
`win1`	the number of times `player1` won.
`win2`	the number of times `player2` won.

Heather Turner

BTm()

########################################################
##  Statistics journal citation data from Stigler (1994)
##  -- see also Agresti (2002, p448)
########################################################
citations

## Convert frequencies to success/failure data
citations.sf <- countsToBinomial(citations)
names(citations.sf)[1:2] <- c("journal1", "journal2")
citations.sf