Calculates the K factor for the Elo rating system based on the player rating.
krating(rating, games, elite = NULL, rv = 2300, kv = c(32,26))A numeric vector of player ratings.
A numeric vector with the number of games played by each player. The K factor does not depend on this quantity.
Not used.
A numeric vector of length one less than kv
giving the thresholds for the ratings.
A numeric vector of length one more than gv
giving the different K factors that the function can
produce.
A numeric vector of K factors.
This function is designed to be used for the kfac argument
of either fide or elo. It returns
kv[i] for players who have a rating within the intervals
defined by rv (closed on the right).