public override CompetitorRanks GenerateResult(int tournamentRunSequence, MatchStrategies.MatchStrategy matchStrategy, List<Competitor> competitors)
{
CompetitorPoints randomPoints = new CompetitorPoints();
foreach (Competitor competitor in competitors)
{
randomPoints.Add(competitor, _randomPointsGenerator.Next(1, 1000));
}
return randomPoints.GetCompetitorRanks();
}
public void GetCompetitorRanksTest()
{
var points = new CompetitorPoints();
double pointValue = 1.0;
var competitors = Helpers.CompetitorListHelper.GetStandardCompetitors(8);
foreach (var competitor in competitors)
{
points.Add(competitor, pointValue++);
}
var ranks = points.GetCompetitorRanks();
Assert.AreEqual(1, ranks[competitors[7]]);
Assert.AreEqual(2, ranks[competitors[6]]);
Assert.AreEqual(competitors.Count, ranks[competitors[0]]);
}
/// <summary>
/// Computes the mean absolute difference between the expected and the observed tournament result.
/// </summary>
/// <param name="competitors"></param>
/// <returns></returns>
public double GetTournamentMAD(List<Competitor> competitors)
{
CompetitorPoints theoreticalRatings = new CompetitorPoints();
foreach (Competitor competitor in competitors)
{
theoreticalRatings.Add(competitor, competitor.TheoreticalRating);
}
CompetitorRanks theoreticalRanks = theoreticalRatings.GetCompetitorRanks();
// TODO: convert to using the StatisticsHelper or Iridium
double[] competitorDiffs = theoreticalRanks
.Select(x => Math.Abs((double)x.Value - (double)x.Key.TournamentRanks[RunSequence.Value]))
.ToArray<double>();
return new Helpers.StatisticsHelper(competitorDiffs).Mean;
}
