category = $value; return $this; } public function comparativeMeasure ($value) { $this -> comparativeMeasure = $value; return $this; } public function dataSource ($value) { $this -> dataSource = $value; return $this; } public function featureMeasures ($value) { $this -> featureMeasures = $value; return $this; } public function query ($value) { $this -> query = $value; return $this; } public function tableName ($value) { $this -> tableName = $value; return $this; } } ?>