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Naming tweak

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This commit is contained in:
Jeff Moser
2010-10-14 21:51:43 -04:00
parent 110463ad49
commit 455f2b3061
66 changed files with 24 additions and 26 deletions
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56
Skills/TrueSkill/Layers/TeamPerformancesToTeamPerformanceDifferencesLayer.php Normal file
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<?php
namespace Moserware\Skills\TrueSkill\Layers;
require_once(dirname(__FILE__) . "/../../FactorGraphs/Variable.php");
require_once(dirname(__FILE__) . "/../TrueSkillFactorGraph.php");
require_once(dirname(__FILE__) . "/../Factors/GaussianWeightedSumFactor.php");
require_once(dirname(__FILE__) . "/TrueSkillFactorGraphLayer.php");
use Moserware\Skills\FactorGraphs\Variable;
use Moserware\Skills\TrueSkill\DrawMargin;
use Moserware\Skills\TrueSkill\TrueSkillFactorGraph;
use Moserware\Skills\TrueSkill\Factors\GaussianWeightedSumFactor;
class TeamPerformancesToTeamPerformanceDifferencesLayer extends TrueSkillFactorGraphLayer
{
public function __construct(TrueSkillFactorGraph &$parentGraph)
{
parent::__construct($parentGraph);
}
public function buildLayer()
{
$inputVariablesGroups = &$this->getInputVariablesGroups();
$inputVariablesGroupsCount = count($inputVariablesGroups);
$outputVariablesGroup = &$this->getOutputVariablesGroups();
for ($i = 0; $i < $inputVariablesGroupsCount - 1; $i++)
{
$strongerTeam = &$inputVariablesGroups[$i][0];
$weakerTeam = &$inputVariablesGroups[$i + 1][0];
$currentDifference = &$this->createOutputVariable();
$newDifferencesFactor = $this->createTeamPerformanceToDifferenceFactor($strongerTeam, $weakerTeam, $currentDifference);
$this->addLayerFactor($newDifferencesFactor);
// REVIEW: Does it make sense to have groups of one?
$outputVariablesGroup[] = array($currentDifference);
}
}
private function createTeamPerformanceToDifferenceFactor(
Variable &$strongerTeam, Variable &$weakerTeam, Variable &$output)
{
$teams = array($strongerTeam, $weakerTeam);
$weights = array(1.0, -1.0);
return new GaussianWeightedSumFactor($output, $teams, $weights);
}
private function &createOutputVariable()
{
$outputVariable = &$this->getParentFactorGraph()->getVariableFactory()->createBasicVariable("Team performance difference");
return $outputVariable;
}
}
?>