Re: [R] How to work out 3-way probabilities

Hello 2010/4/28 Jeff Brown > If you're not willing to assume independence, things can get very weird: > http://en.wikipedia.org/wiki/Arrow's_impossibility_theorem > Yes, now i see the problem, thank you ) Cheers, Dmitrij [

Re: [R] How to work out 3-way probabilities

Hello 2010/4/28 Charles C. Berry > So each player gets a score and the highest wins? > No, for logit i just use 1 if player win and 0 if he lost. If it tie, both players have 0. For actual scories it better to have OLS model, but i do not need actual scories. > Or you have a bunch of one-on-o

Re: [R] How to work out 3-way probabilities

If you're willing to assume independence, multiplication is the way to go: Pr( a beats b & a beats c) = Pr( a beats b ) * Pr( a beats c ) If you're not willing to assume independence, things can get very weird: http://en.wikipedia.org/wiki/Arrow's_impossibility_theorem -- View this message in c

Re: [R] How to work out 3-way probabilities

On Tue, 27 Apr 2010, Dimitrij Kudriavcev wrote: Hello. I have a quick question. I try to use logit regression, to work out probabilities in the sport event. I have work out probabilities for group of 2 players: p1 - probability, what player1 will beat player2 p2 - probability, what player2 wi

[R] How to work out 3-way probabilities

Hello. I have a quick question. I try to use logit regression, to work out probabilities in the sport event. I have work out probabilities for group of 2 players: p1 - probability, what player1 will beat player2 p2 - probability, what player2 will beat player1 pt - tie probability, p1 <- 1 - p1