brat
and bratt
family functions.Brat(mat, ties = 0 * mat, string = c(" > "," == "))
mat
. By
default, there are no ties. The matrix must be symmetric,
and the diagonal should contain NA
s."NZ > Oz"
`means' NZ beats
Australia in rugby. Suggested alternatives include "
beats "
or " wins against "
. The second vabrat
and bratt
. Hence the
non-diagonal elements of the $M+1$ by $M+1$
matrix are concatenated into $M(M+1)$ values (no
ties), while if there are ties, the non-diagonal elements
of the $M$ by $M$ matrix are concatenated into
$M(M-1)$ values.brat
,
bratt
,
InverseBrat
.journal = c("Biometrika", "Comm Statist", "JASA", "JRSS-B")
mat = matrix(c( NA, 33, 320, 284, 730, NA, 813, 276,
498, 68, NA, 325, 221, 17, 142, NA), 4, 4)
dimnames(mat) = list(winner = journal, loser = journal)
Brat(mat)
vglm(Brat(mat) ~ 1, brat, trace = TRUE)
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