public function actionPullFrecuentMenteeSubdomains()
{
$associationFilter = new AssociationFilter();
if (isset($_POST['AssociationFilter'])) {
$associationFilter->attributes = $_POST['AssociationFilter'];
if (!is_numeric($associationFilter->lowerBoundMinSupport)) {
$associationFilter->lowerBoundMinSupport = 0.1;
}
if (!is_numeric($associationFilter->numRulesToFind)) {
$associationFilter->numRulesToFind = 10;
}
if (!is_numeric($associationFilter->uppperBoundMinSupport)) {
$associationFilter->uppperBoundMinSupport = 1.0;
}
} else {
$associationFilter->setDefaultValues();
}
// echo $associationFilter->lowerBoundMinSupport;
//1 pull all the attributes (Dinstinct SubDomains used)
$subdomainsUsedCol = Subdomain::getAllSubdomainsInUse();
//2 build the attributes collection
$attributeCol = array();
$attributeMap = array();
$lastAttribIndex = count($subdomainsUsedCol) - 1;
for ($i = 0; $i <= $lastAttribIndex; $i++) {
$attribKey = $subdomainsUsedCol[$i]->name;
$attribute = new Attribute($attribKey, $i);
$attributeCol[] = $attribute;
$attributeMap[$attribKey] = $attribute;
}
//3 pull all the item sets (relation of Subdomains with mentee)
$subdomainsPerMenteeCol = AssociationFilter::retrieveSubDomainsUsedPerMentee();
//4 build the instances
$instancesCol = array();
$currentCreatorID = NULL;
$currentInstance = NULL;
foreach ($subdomainsPerMenteeCol as $data) {
if ($currentInstance == NULL || $currentCreatorID != ArrayUtils::getValueOrDefault($data, "MenteeUserID", 0)) {
$currentCreatorID = ArrayUtils::getValueOrDefault($data, "MenteeUserID", 0);
$currentInstance = new Instance($lastAttribIndex + 1);
$instancesCol[] = $currentInstance;
}
$attribKey = ArrayUtils::getValueOrDefault($data, "SubDomainName", 0);
$currentInstance->setValue($attributeMap[$attribKey], 1);
}
$instances = new Instances($attributeCol, $instancesCol);
//5 calculate the association rules
$fpGrowth = new FPGrowth();
$fpGrowth->m_numRulesToFind = $associationFilter->numRulesToFind;
$fpGrowth->m_upperBoundMinSupport = $associationFilter->uppperBoundMinSupport;
$fpGrowth->lowerBoundMinSupport = $associationFilter->lowerBoundMinSupport;
$fpGrowth->buildAssociations($instances);
//6 render the association rules
$rules = $fpGrowth->getRules();
$associations = array();
$id = 0;
foreach ($rules as $rule) {
$associations[] = array("id" => $id, "Operator" => " ==> ", "Premise" => $this->renderBinaryItemsCommaSeparated($rule->getPremise()), "Consequence" => $this->renderBinaryItemsCommaSeparated($rule->getConsequence()));
//echo $this->renderBinaryItemsCommaSeparated($rule->getPremise()). " ==> ".$this->renderBinaryItemsCommaSeparated($rule->getConsequence()). "</br>";
$id++;
}
$dataProvider = new CArrayDataProvider($associations, array('pagination' => false));
$this->render("frecuentMenteeSubdomains", array('dataprovider' => $dataProvider, 'filter' => $associationFilter));
}
