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glicko-elixir
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Flattern opponent in result map

This commit is contained in:
avitex 2017-11-16 13:43:03 +11:00
parent c80e397073
commit 218ac020fe
1 changed files with 8 additions and 6 deletions
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14
lib/glicko.ex
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@ -28,14 +28,16 @@ defmodule Glicko do
defp do_new_rating(player = %Player{version: :v2}, results, opts) do
results = Enum.map(results, fn result ->
opponent = Player.to_v2(result.opponent)
result =
Map.new
|> Map.put(:opponent, Player.to_v2(result.opponent))
|> Map.put(:score, result.score)
|> Map.put(:opponent_rating, opponent.rating)
|> Map.put(:opponent_rating_deviation, opponent.rating_deviation)
|> Map.put(:opponent_rating_deviation_g, calc_g(opponent.rating_deviation))
result = Map.put(result, :opponent_rating_deviation_g, calc_g(result.opponent.rating_deviation))
result = Map.put(result, :e, calc_e(player, result))
result
Map.put(result, :e, calc_e(player, result))
end)
ctx =
@ -153,7 +155,7 @@ defmodule Glicko do
end
defp calc_k(ctx, k) do
if calc_f(ctx, (ctx.alpha - k * ctx.system_constant)) < 0 do
if calc_f(ctx, ctx.alpha - k * ctx.system_constant) < 0 do
calc_k(ctx, k + 1)
else
k
@ -167,6 +169,6 @@ defmodule Glicko do
# E function
defp calc_e(player, result) do
1 / (1 + :math.exp(-1 * result.opponent_rating_deviation_g * (player.rating - result.opponent.rating)))
1 / (1 + :math.exp(-1 * result.opponent_rating_deviation_g * (player.rating - result.opponent_rating)))
end
end