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Program.cs
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Program.cs
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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace FootballDescent
{
class Program
{
static Random random = new Random();
static void Main(string[] args)
{
CsvParser parser = new CsvParser();
parser.Go();
for (int i = 0; i < 5000000; i++)
GradDown(parser.Games);
PrintAverageError(parser);
foreach (Player p in parser.Players.Where(x => x.Quality != 0).OrderByDescending(x => x.Quality))
Console.WriteLine("{0, 11} {1, 5}", p.Name, p.Quality.ToString("0.00"));
//Console.WriteLine("{0},{1}", p.Name, p.Quality.ToString("0.00"));
Console.ReadLine();
}
private static void PrintAverageError(CsvParser parser)
{
double totalError = 0d;
foreach (Game g in parser.Games)
{
double pred = 0d;
for (int i = 0; i < 5; i++)
{
pred += g.TA[i].Quality;
pred -= g.TB[i].Quality;
}
double diff = g.GoalDiff - pred;
totalError += diff * diff;
}
Console.WriteLine("MSE is: {0:0.000}", totalError / (double)parser.Games.Length);
}
private static void GradDown(Game[] games)
{
Game g = games[random.Next(0, games.Length)];
double pred = 0f;
//if (!g.TA.All(x => x.GamesPlayed > 3)) return;
//if (!g.TB.All(x => x.GamesPlayed > 3)) return;
for (int i = 0; i < 5; i++)
{
pred += g.TA[i].Quality;
pred -= g.TB[i].Quality;
}
double diff = g.GoalDiff - pred;
//diff = diff * diff * Math.Sign(g.GoalDiff - pred);
diff = diff / 1000f;
int gameBoundary = 0;
double teamAValids = 0;
double teamBValids = 0;
for (int i = 0; i < 5; i++)
if (g.TA[i].GamesPlayed > gameBoundary)
teamAValids++;
for (int i = 0; i < 5; i++)
if (g.TB[i].GamesPlayed > gameBoundary)
teamBValids++;
for (int i = 0; i < 5; i++)
{
if (g.TA[i].GamesPlayed > gameBoundary)
g.TA[i].Quality += (diff / teamAValids);
if (g.TB[i].GamesPlayed > gameBoundary)
g.TB[i].Quality -= (diff / teamBValids);
}
}
}
}