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<?php
/**
* Matomo - free/libre analytics platform
*
* @link https://matomo.org
* @license https://www.gnu.org/licenses/gpl-3.0.html GPL v3 or later
*/
namespace Piwik\Plugins\Events\Columns\Metrics;
use Piwik\Columns\Dimension;
use Piwik\DataTable\Row;
use Piwik\Piwik;
use Piwik\Plugin\ProcessedMetric;
/**
* The average value for a triggered event. Calculated as:
*
* sum_event_value / nb_events_with_value
*
* sum_event_value and nb_events_with_value are calculated by the Event archiver.
*/
class AverageEventValue extends ProcessedMetric
{
public function getName()
{
return 'avg_event_value';
}
public function getTranslatedName()
{
return Piwik::translate('Events_AvgValueDocumentation');
}
public function compute(Row $row)
{
$sumEventValue = $this->getMetric($row, 'sum_event_value');
$eventsWithValue = $this->getMetric($row, 'nb_events_with_value');
return Piwik::getQuotientSafe($sumEventValue, $eventsWithValue, $precision = 2);
}
public function getDependentMetrics()
{
return array('sum_event_value', 'nb_events_with_value');
}
public function getSemanticType(): ?string
{
return Dimension::TYPE_NUMBER;
}
}
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