1 files changed, 52 insertions, 0 deletions
diff --git a/plugins/CoreHome/Columns/Metrics/BounceRate.php b/plugins/CoreHome/Columns/Metrics/BounceRate.php
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index 0000000000..65d46fb435
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+++ b/plugins/CoreHome/Columns/Metrics/BounceRate.php
@@ -0,0 +1,52 @@
+<?php
+/**
+ * Piwik - free/libre analytics platform
+ *
+ * @link http://piwik.org
+ * @license http://www.gnu.org/licenses/gpl-3.0.html GPL v3 or later
+ */
+namespace Piwik\Plugins\CoreHome\Columns\Metrics;
+
+use Piwik\DataTable\Row;
+use Piwik\Metrics\Formatter;
+use Piwik\Piwik;
+use Piwik\Plugin\ProcessedMetric;
+
+/**
+ * The percentage of visits that leave the site without visiting another page. Calculated
+ * as:
+ *
+ *     bounce_count / nb_visits
+ *
+ * bounce_count & nb_visits are calculated by an Archiver.
+ */
+class BounceRate extends ProcessedMetric
+{
+    public function getName()
+    {
+        return 'bounce_rate';
+    }
+
+    public function getTranslatedName()
+    {
+        return Piwik::translate('General_ColumnBounceRate');
+    }
+
+    public function getDependentMetrics()
+    {
+        return array('bounce_count', 'nb_visits');
+    }
+
+    public function format($value, Formatter $formatter)
+    {
+        return $formatter->getPrettyPercentFromQuotient($value);
+    }
+
+    public function compute(Row $row)
+    {
+        $bounceCount = $this->getMetric($row, 'bounce_count');
+        $visits = $this->getMetric($row, 'nb_visits');
+
+        return Piwik::getQuotientSafe($bounceCount, $visits, $precision = 2);
+    }
+}
+\ No newline at end of file