This function constructs a win matrix from a data frame of comparisons. It is needed for the MCMC functions.
Usage
comparisons_to_matrix(n.objects, comparisons)
Arguments
- n.objects
The number of areas in the study.
- comparisons
An N x 2 data frame, where N is the number of comparisons. Each row should correspond to a judgment. The first column is the winning object, the second column is the more losing object. The areas should be labeled from 1 to n.objects.
Value
A matrix where the i, j th element is the number of times object i beat object j.
Examples
# Generate some sample comparisons
comparisons <- data.frame("winner" = c(1, 3, 2, 2), "loser" = c(3, 1, 1, 3))
# Create matrix from comparisons
win.matrix <- comparisons_to_matrix(3, comparisons)
