original_string: protected function errors_to_grade($numerrors) {
          $grade = 100.00000;
          for ($i = 1; $i <= $numerrors; $i++) {
              if (isset($this->mappings[$i])) {
                  $grade = $this->mappings[$i]->grade;
              }
          }
          if ($grade > 100.00000) {
              $grade = 100.00000;
          }
          if ($grade < 0.00000) {
              $grade = 0.00000;
          }
          return grade_floatval($grade);
      }
code: protected function errors_to_grade($numerrors) {
          $grade = 100.00000;
          for ($i = 1; $i <= $numerrors; $i++) {
              if (isset($this->mappings[$i])) {
                  $grade = $this->mappings[$i]->grade;
              }
          }
          if ($grade > 100.00000) {
              $grade = 100.00000;
          }
          if ($grade < 0.00000) {
              $grade = 0.00000;
          }
          return grade_floatval($grade);
      }
code_tokens: protected function errors_to_grade ( $ numerrors ) { $ grade = 100.00000 ; for ( $ i = 1 ; $ i <= $ numerrors ; $ i ++ ) { if ( isset ( $ this -> mappings [ $ i ] ) ) { $ grade = $ this -> mappings [ $ i ] -> grade ; } } if ( $ grade > 100.00000 ) { $ grade = 100.00000 ; } if ( $ grade < 0.00000 ) { $ grade = 0.00000 ; } return grade_floatval ( $ grade ) ; }
docstring: Returns a grade 0.00000 to 100.00000 for the given number of errors
  
  This is where we use the mapping table defined by the teacher. If a grade for the given
  number of errors (negative assertions) is not defined, the most recently defined one is used.
  Example of the defined mapping:
  Number of errors | Grade
  0 | 100%  (always)
  1 | -     (not defined)
  2 | 80%
  3 | 60%
  4 | -
  5 | 30%
  6 | 0%
  With this mapping, one error is mapped to 100% grade and 4 errors is mapped to 60%.
  
  @param mixed $numerrors Number of errors
  @return float          Raw grade (0.00000 to 100.00000) for the given number of negative assertions
docstring_tokens: Returns a grade 0 . 00000 to 100 . 00000 for the given number of errors