original_string: protected function to_features($calculatedvalues) {
  
          $classes = static::get_classes();
  
          foreach ($calculatedvalues as $sampleid => $calculatedvalue) {
  
              // Using intval as it may come as a float from the db.
              $classindex = array_search(intval($calculatedvalue), $classes, true);
  
              if ($classindex === false && !is_null($calculatedvalue)) {
                  throw new \coding_exception(get_class($this) . ' calculated value "' . $calculatedvalue .
                      '" is not one of its defined classes (' . json_encode($classes) . ')');
              }
  
              // We transform the calculated value into multiple features, one for each of the possible classes.
              $features = array_fill(0, count($classes), 0);
  
              // 1 to the selected value.
              if (!is_null($calculatedvalue)) {
                  $features[$classindex] = 1;
              }
  
              $calculatedvalues[$sampleid] = $features;
          }
  
          return $calculatedvalues;
      }
code: protected function to_features($calculatedvalues) {
  
          $classes = static::get_classes();
  
          foreach ($calculatedvalues as $sampleid => $calculatedvalue) {
  
              // Using intval as it may come as a float from the db.
              $classindex = array_search(intval($calculatedvalue), $classes, true);
  
              if ($classindex === false && !is_null($calculatedvalue)) {
                  throw new \coding_exception(get_class($this) . ' calculated value "' . $calculatedvalue .
                      '" is not one of its defined classes (' . json_encode($classes) . ')');
              }
  
              // We transform the calculated value into multiple features, one for each of the possible classes.
              $features = array_fill(0, count($classes), 0);
  
              // 1 to the selected value.
              if (!is_null($calculatedvalue)) {
                  $features[$classindex] = 1;
              }
  
              $calculatedvalues[$sampleid] = $features;
          }
  
          return $calculatedvalues;
      }
code_tokens: protected function to_features ( $ calculatedvalues ) { $ classes = static :: get_classes ( ) ; foreach ( $ calculatedvalues as $ sampleid => $ calculatedvalue ) { // Using intval as it may come as a float from the db. $ classindex = array_search ( intval ( $ calculatedvalue ) , $ classes , true ) ; if ( $ classindex === false && ! is_null ( $ calculatedvalue ) ) { throw new \ coding_exception ( get_class ( $ this ) . ' calculated value "' . $ calculatedvalue . '" is not one of its defined classes (' . json_encode ( $ classes ) . ')' ) ; } // We transform the calculated value into multiple features, one for each of the possible classes. $ features = array_fill ( 0 , count ( $ classes ) , 0 ) ; // 1 to the selected value. if ( ! is_null ( $ calculatedvalue ) ) { $ features [ $ classindex ] = 1 ; } $ calculatedvalues [ $ sampleid ] = $ features ; } return $ calculatedvalues ; }
docstring: From calculated values to dataset features.
  
  One column for each class.
  
  @param float[] $calculatedvalues
  @return float[]
docstring_tokens: From calculated values to dataset features .