Ratings System

[jake13jake]

I need to give Classic's Spar Rating back. I don't quite understand these.

updateratingdeviation(float, float) - returns float - old deviation, time of last spar, returns new deviation
updateratings(obj) - returns object - updates an array of {rating1,ratingdeviation1, rating2,ratingdeviation2, ...}, init them at 1500 and 350

would the time of last spar be in terms of timevar2?
updateratingdeviation(player.ratingd,player.client r.spartime);

updateratings(obj)... just don't get this at all.

euhh... maybe I do now? But still, how often should rating deviation be checked?