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<?php
/*
* @author Andreas Åkre Solberg <andreas.solberg@uninett.no>
* @package SimpleSAMLphp
*/
class sspmod_statistics_RatioDataset extends sspmod_statistics_StatDataset {
public function aggregateSummary() {
/**
* Aggregate summary table from dataset. To be used in the table view.
*/
$this->summary = array();
$noofvalues = array();
foreach($this->results AS $slot => $res) {
foreach ($res AS $key => $value) {
if (array_key_exists($key, $this->summary)) {
$this->summary[$key] += $value;
if ($value > 0)
$noofvalues[$key]++;
} else {
$this->summary[$key] = $value;
if ($value > 0)
$noofvalues[$key] = 1;
else
$noofvalues[$key] = 0;
}
}
}
foreach($this->summary AS $key => $val) {
$this->summary[$key] = $this->divide($this->summary[$key], $noofvalues[$key]);
}
asort($this->summary);
$this->summary = array_reverse($this->summary, TRUE);
}
private function ag($k, $a) {
if (array_key_exists($k, $a)) return $a[$k];
return 0;
}
private function divide($v1, $v2) {
if ($v2 == 0) return 0;
return ($v1 / $v2);
}
public function combine($result1, $result2) {
$combined = array();
foreach($result2 AS $tick => $val) {
$combined[$tick] = array();
foreach($val AS $index => $num) {
$combined[$tick][$index] = $this->divide(
$this->ag($index, $result1[$tick]),
$this->ag($index, $result2[$tick])
);
}
}
return $combined;
}
public function getPieData() {
return NULL;
}
}
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