function pData::normalize in Visitors 7.2

Same name and namespace in other branches

1. 7 pChart/class/pData.class.php \pData::normalize()

File

pChart/class/pData.class.php, line 610

Class

pData

Code

function normalize($NormalizationFactor = 100, $UnitChange = NULL, $Round = 1) {
  $Abscissa = $this->Data["Abscissa"];
  $SelectedSeries = "";
  $MaxVal = 0;
  foreach ($this->Data["Axis"] as $AxisID => $Axis) {
    if ($UnitChange != NULL) {
      $this->Data["Axis"][$AxisID]["Unit"] = $UnitChange;
    }
    foreach ($this->Data["Series"] as $SerieName => $Serie) {
      if ($Serie["Axis"] == $AxisID && $Serie["isDrawable"] == TRUE && $SerieName != $Abscissa) {
        $SelectedSeries[$SerieName] = $SerieName;
        if (count($Serie["Data"]) > $MaxVal) {
          $MaxVal = count($Serie["Data"]);
        }
      }
    }
  }
  for ($i = 0; $i <= $MaxVal - 1; $i++) {
    $Factor = 0;
    foreach ($SelectedSeries as $Key => $SerieName) {
      $Value = $this->Data["Series"][$SerieName]["Data"][$i];
      if ($Value != VOID) {
        $Factor = $Factor + abs($Value);
      }
    }
    if ($Factor != 0) {
      $Factor = $NormalizationFactor / $Factor;
      foreach ($SelectedSeries as $Key => $SerieName) {
        $Value = $this->Data["Series"][$SerieName]["Data"][$i];
        if ($Value != VOID && $Factor != $NormalizationFactor) {
          $this->Data["Series"][$SerieName]["Data"][$i] = round(abs($Value) * $Factor, $Round);
        }
        elseif ($Value == VOID || $Value == 0) {
          $this->Data["Series"][$SerieName]["Data"][$i] = VOID;
        }
        elseif ($Factor == $NormalizationFactor) {
          $this->Data["Series"][$SerieName]["Data"][$i] = $NormalizationFactor;
        }
      }
    }
  }
  foreach ($SelectedSeries as $Key => $SerieName) {
    $this->Data["Series"][$SerieName]["Max"] = max($this
      ->stripVOID($this->Data["Series"][$SerieName]["Data"]));
    $this->Data["Series"][$SerieName]["Min"] = min($this
      ->stripVOID($this->Data["Series"][$SerieName]["Data"]));
  }
}