https://microprediction.r-universe.devRecent package updates in micropredictionR-universehttps://github.com/microprediction.pnghttps://microprediction.r-universe.devWed, 09 Sep 2026 16:30:02 GMTpeter.cotton@microprediction.com (Peter Cotton)Solves the horse race problem in both directions. Infers relative ability from win probabilities (or betting dividends) for contests whose entrants share a common performance distribution, with dead heats handled exactly, by the lattice fixed-point algorithm of Cotton (2021) <doi:10.1137/19M1276261>. Also computes all N win probabilities of a factor-structured Gaussian race (multinomial probit with low-rank-plus-diagonal covariance) in one shared-lattice pass of O(Q*N*L) operations, and inverts observed shares to abilities by a damped Newton method with analytic slopes. A dependency-free base-R port of the reference python package 'winning'. Performances are times: lowest wins.https://github.com/r-universe/microprediction/actions/runs/38153218541Wed, 09 Sep 2026 16:30:02 GMTwinning0.3.0successhttps://microprediction.r-universe.devhttps://github.com/cran/winning