Rating competitors
I would start with elimination-by-aspects models: ?eba I would read the Tversky 1972 paper (cited on the help page for the eba() function), which is brilliant.
Jeff Newmiller wrote:
I am looking for hints on how to estimate ratings for competitors in an ongoing pairwise competition using R... my particular area of interest being the game of Go, but the idea of identifying ratings (on a continuous scale) rather than relative rankings seems easily generalized to other competitions so I thought someone might be studying something related already. I presume the rating of a competitor would be best modeled as a random variate on the rating scale, and an encounter between two competitors would be represented by a binary result. Logistic regression seems promising, but I am at a loss how to represent the model since the pairings are arbitrary and not necessarily repeated often.
_____________________________
Professor Michael Kubovy
University of Virginia
Department of Psychology
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