original_string: protected function map(Mapper $mapper): DataSet
      {
          $this->mapper = $mapper;
          $this->instances = $this->inputsMatrix = $this->outputsMatrix = [];
  
          foreach ($this->rawData as &$row) {
              //Split each row of the raw DataSet into inputs and outputs
              list($inputs, $outputs) = $this->mapper->map($row);
              //If the mapping was successfully made (the cleaners allowed the row to pass)
              if ($inputs && $outputs) {
                  //Increment size
                  $this->size++;
                  //Save the inputs matrix
                  $this->inputsMatrix[] = $inputs;
                  $this->numberOfInputs = $this->numberOfInputs ?? count($inputs);
                  //save the output matrix
                  $this->outputsMatrix[] = $outputs;
                  $this->numberOfOutputs = $this->numberOfOutputs ?? count($outputs);
              }
  
              foreach ($row as $key => $value) {
                  //calculate the frequency at which each value occurs
                  $this->frequency[$key][$value] = $this->frequency[$key][$value] ?? 0;
                  $this->frequency[$key][$value]++;
  
                  //calculate the rawAverage of each column of the raw DataSet, since cleaners might ignore a row
                  $this->rawAverage[$key] = $this->rawAverage[$key] ?? 0;
                  $this->rawAverage[$key] += floatval($value) / $this->rawSize;
              }
  
          }
  
          return $this;
      }
code: protected function map(Mapper $mapper): DataSet
      {
          $this->mapper = $mapper;
          $this->instances = $this->inputsMatrix = $this->outputsMatrix = [];
  
          foreach ($this->rawData as &$row) {
              //Split each row of the raw DataSet into inputs and outputs
              list($inputs, $outputs) = $this->mapper->map($row);
              //If the mapping was successfully made (the cleaners allowed the row to pass)
              if ($inputs && $outputs) {
                  //Increment size
                  $this->size++;
                  //Save the inputs matrix
                  $this->inputsMatrix[] = $inputs;
                  $this->numberOfInputs = $this->numberOfInputs ?? count($inputs);
                  //save the output matrix
                  $this->outputsMatrix[] = $outputs;
                  $this->numberOfOutputs = $this->numberOfOutputs ?? count($outputs);
              }
  
              foreach ($row as $key => $value) {
                  //calculate the frequency at which each value occurs
                  $this->frequency[$key][$value] = $this->frequency[$key][$value] ?? 0;
                  $this->frequency[$key][$value]++;
  
                  //calculate the rawAverage of each column of the raw DataSet, since cleaners might ignore a row
                  $this->rawAverage[$key] = $this->rawAverage[$key] ?? 0;
                  $this->rawAverage[$key] += floatval($value) / $this->rawSize;
              }
  
          }
  
          return $this;
      }
code_tokens: protected function map ( Mapper $ mapper ) : DataSet { $ this -> mapper = $ mapper ; $ this -> instances = $ this -> inputsMatrix = $ this -> outputsMatrix = [ ] ; foreach ( $ this -> rawData as & $ row ) { //Split each row of the raw DataSet into inputs and outputs list ( $ inputs , $ outputs ) = $ this -> mapper -> map ( $ row ) ; //If the mapping was successfully made (the cleaners allowed the row to pass) if ( $ inputs && $ outputs ) { //Increment size $ this -> size ++ ; //Save the inputs matrix $ this -> inputsMatrix [ ] = $ inputs ; $ this -> numberOfInputs = $ this -> numberOfInputs ?? count ( $ inputs ) ; //save the output matrix $ this -> outputsMatrix [ ] = $ outputs ; $ this -> numberOfOutputs = $ this -> numberOfOutputs ?? count ( $ outputs ) ; } foreach ( $ row as $ key => $ value ) { //calculate the frequency at which each value occurs $ this -> frequency [ $ key ] [ $ value ] = $ this -> frequency [ $ key ] [ $ value ] ?? 0 ; $ this -> frequency [ $ key ] [ $ value ] ++ ; //calculate the rawAverage of each column of the raw DataSet, since cleaners might ignore a row $ this -> rawAverage [ $ key ] = $ this -> rawAverage [ $ key ] ?? 0 ; $ this -> rawAverage [ $ key ] += floatval ( $ value ) / $ this -> rawSize ; } } return $ this ; }
docstring: Is called by the prepare method, maps the data grabbed by the processor into instances objects
  @param Mapper $mapper
  @return DataSet
docstring_tokens: Is called by the prepare method maps the data grabbed by the processor into instances objects