protected function AcquiaLiftReportBase::extractConversionSummaryData in Acquia Lift Connector 7

Extracts data from the raw aggregate confidence report that is prepared for use within the report rendering process.

Parameters

$items: An array of items as return from Acquia Lift.

Return value

array An associative array with information about the performance of each choice.

1 call to AcquiaLiftReportBase::extractConversionSummaryData()

AcquiaLiftReportBase::loadConversionReportHelper in plugins/agent_types/AcquiaLiftAgent.inc

Handles all of the logic to load and extract a conversion report.

File

plugins/agent_types/AcquiaLiftAgent.inc, line 1788

Provides an agent type for Acquia Lift

Class

AcquiaLiftReportBase

Base class providing report data loading functionality common to all Acquia Lift Reports.

Code

protected function extractConversionSummaryData($items) {
  if (empty($items)) {
    return array();
  }
  $shown = array();
  $counter = NAN;
  $data = array();
  $confidence = FALSE;
  $winner = '';
  $winning_value = NAN;
  foreach ($items as $item) {

    // Check to see if we are in a new grouping of choices.
    $check = $item['choice'];

    // First item in the loop so this is the control.
    if (is_nan($counter) || isset($shown[$check])) {
      $shown = array();
      $counter = 0;
    }
    else {
      $counter++;
    }
    $shown[$check] = $check;
    $choice = $option_id = $item['choice'];
    $choice_id = $choice;
    if (strpos($choice, ':') !== FALSE) {
      list($decision_name, $option_id) = explode(':', $choice);
    }
    if ($option_label = personalize_get_option_label_for_decision_and_choice($decision_name, $option_id)) {
      $choice_id = $option_label;
    }
    $goals = $item['totals']['goals'];
    $count = $item['totals']['count'];

    // The format for percentages will already multiply by 100.
    $rate = $count > 0 ? $goals / $count : 0;
    $margin = ($item['bHi'] - $item['bLo']) / 2;
    if ($item['signif']) {
      if (is_nan($winning_value) || $item['confidence'] > $winning_value) {
        $winning_value = $item['confidence'];
        $winner = $counter;
        $confidence = TRUE;
      }
    }
    $data[$item['feature']][] = array(
      'counter' => $counter,
      'choice_id' => $choice_id,
      'raw_label' => $option_id,
      'goals' => $goals,
      'count' => $count,
      'date' => $item['date'],
      'timestamp' => strtotime($item['date']),
      'conversion' => $this
        ->formatReportPercentage($rate),
      'estimated_value' => $this
        ->formatReportNumber($item['vMean'], TRUE, 4),
      'estimated_higher' => $this
        ->formatReportNumber($item['bHi'], TRUE, 4),
      'estimated_lower' => $this
        ->formatReportNumber($item['bLo'], TRUE, 4),
      'margin_error' => $this
        ->formatReportNumber($margin, TRUE, 4),
      'significant' => $item['signif'],
      'control' => $counter === 0,
      'confidence' => $counter === 0 ? self::DATA_NA : $this
        ->formatReportPercentage($item['confidence'] / 100),
      'lift_default' => $counter === 0 ? self::DATA_NA : $this
        ->formatReportPercentage($item['lift']['default'] / 100, TRUE),
      'lift_random' => $this
        ->formatReportPercentage($item['lift']['random'] / 100, TRUE),
    );
  }
  $report = array(
    'data' => $data,
    'overview' => array(
      'confidence' => $confidence,
      'winner' => $winner,
    ),
  );
  return $report;
}