An implementation of the Glicko-2 rating algorithm written from scratch, with
the goal being to provide less conveniences than glicko2js
in favor of faster
execution time.
Basically glicko2-lite
does not keep track of anything for you. All it does
is calculate new ratings. At the point where I was trying to calculate ratings
for tens of thousands of players across tens of thousands of matches,
glicko2js
only got slower and slower as more matches were added. For my case
at least, I was already saving rating information to a database so all I really
needed was the calculation part.
var glicko2 = require('glicko2-lite');
// player A: 1500 rating, 350 rating deviation, and 0.06 volatility
// player B: 2000 rating, 70 rating deviation
// A loses to B
// new rating, rating deviation, and volatility:
glicko2(1500, 350, 0.06, [[2000, 70, 0]])
// => {
// => rating: 1467.5878493169462,
// => rd: 318.6617548537152,
// => vol: 0.059999457650202655
// => }
$ npm install glicko2-lite
var glicko2 = require('glicko2-lite');
rating
(Number)rd
(Number)vol
(Number)matches
(Array)options
(Object)