original_string: public function addLabelColumn($labelColumn)
      {
          if (is_array($labelColumn)) {
              foreach ($labelColumn as $label) {
                  $this->addLabelColumn($label);
              }
              return;
          }
          $this->labelColumns[$labelColumn] = true;
      }
code: public function addLabelColumn($labelColumn)
      {
          if (is_array($labelColumn)) {
              foreach ($labelColumn as $label) {
                  $this->addLabelColumn($label);
              }
              return;
          }
          $this->labelColumns[$labelColumn] = true;
      }
code_tokens: public function addLabelColumn ( $ labelColumn ) { if ( is_array ( $ labelColumn ) ) { foreach ( $ labelColumn as $ label ) { $ this -> addLabelColumn ( $ label ) ; } return ; } $ this -> labelColumns [ $ labelColumn ] = true ; }
docstring: Add a label column.
  Labels are the columns that are replaced with "Others" after the limit.
  
  @param string|array $labelColumn
docstring_tokens: Add a label column . Labels are the columns that are replaced with Others after the limit .