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First test passes!

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The second one... not so much ;-)
This commit is contained in:
Jeff Moser
2010-10-02 23:22:01 -04:00
parent 124d73fdbf
commit 2c3c35dbff
2 changed files with 48 additions and 27 deletions
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39
PHPSkills/TrueSkill/FactorGraphTrueSkillCalculator.php
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@ -103,11 +103,11 @@ class FactorGraphTrueSkillCalculator extends SkillCalculator
private static function getPlayerMeansVector(array &$teamAssignmentsList)
{
// A simple vector of all the player means.
return new Vector($this->getPlayerRatingValues($teamAssignmentsList,
function($rating)
{
return $rating->getMean();
}));
return new Vector(self::getPlayerRatingValues($teamAssignmentsList,
function($rating)
{
return $rating->getMean();
}));
}
private static function getPlayerCovarianceMatrix(array &$teamAssignmentsList)
@ -115,11 +115,11 @@ class FactorGraphTrueSkillCalculator extends SkillCalculator
// This is a square matrix whose diagonal values represent the variance (square of standard deviation) of all
// players.
return new DiagonalMatrix(
$this->getPlayerRatingValues($teamAssignmentsList,
function($rating)
{
return square($rating->getStandardDeviation());
}));
self::getPlayerRatingValues($teamAssignmentsList,
function($rating)
{
return square($rating->getStandardDeviation());
}));
}
// Helper function that gets a list of values for all player ratings
@ -130,7 +130,7 @@ class FactorGraphTrueSkillCalculator extends SkillCalculator
foreach ($teamAssignmentsList as $currentTeam)
{
foreach (currentTeam.Values as $currentRating)
foreach ($currentTeam->getAllRatings() as $currentRating)
{
$playerRatingValues[] = $playerRatingFunction($currentRating);
}
@ -139,7 +139,7 @@ class FactorGraphTrueSkillCalculator extends SkillCalculator
return $playerRatingValues;
}
private static function createPlayerTeamAssignmentMatrix(&$teamAssignmentsList, &$totalPlayers)
private static function createPlayerTeamAssignmentMatrix(&$teamAssignmentsList, $totalPlayers)
{
// The team assignment matrix is often referred to as the "A" matrix. It's a matrix whose rows represent the players
// and the columns represent teams. At Matrix[row, column] represents that player[row] is on team[col]
@ -168,25 +168,26 @@ class FactorGraphTrueSkillCalculator extends SkillCalculator
// Need to add in 0's for all the previous players, since they're not
// on this team
$currentRowValues = array();
$playerAssignments[] = &$currentRowValues;
$currentRowValues = array();
foreach ($currentTeam as $currentRating)
foreach ($currentTeam->getAllPlayers() as $currentPlayer)
{
$currentRowValues[] = PartialPlay::getPartialPlayPercentage($currentRating->getKey());
$currentRowValues[] = PartialPlay::getPartialPlayPercentage($currentPlayer);
// indicates the player is on the team
$totalPreviousPlayers++;
}
$nextTeam = $teamAssignmentsList[$i + 1];
foreach ($nextTeam as $nextTeamPlayerPair)
foreach ($nextTeam->getAllPlayers() as $nextTeamPlayer)
{
// Add a -1 * playing time to represent the difference
$currentRowValues[] = -1 * PartialPlay::getPartialPlayPercentage($nextTeamPlayerPair->getKey());
$currentRowValues[] = -1 * PartialPlay::getPartialPlayPercentage($nextTeamPlayer);
}
$playerAssignments[] = &$currentRowValues;
}
$playerTeamAssignmentsMatrix = new Matrix($totalPlayers, $teamAssignmentsListCount - 1, $playerAssignments);
$playerTeamAssignmentsMatrix = Matrix::fromColumnValues($totalPlayers, $teamAssignmentsListCount - 1, $playerAssignments);
return $playerTeamAssignmentsMatrix;
}