docs: def get_experimental_ddg_values(self, record, dataframe_record):
          '''Adds the mean experimental value associated with each analysis set to the dataframe row.'''
          new_idxs = []
          for analysis_set in self.get_analysis_sets(record):
              ddg_details = record['DDG'][analysis_set]
              exp_ddg_fieldname = BenchmarkRun.get_analysis_set_fieldname('Experimental', analysis_set)
              new_idxs.append(exp_ddg_fieldname)
              dataframe_record[exp_ddg_fieldname] = None
              if ddg_details:
                  dataframe_record[exp_ddg_fieldname] = ddg_details['MeanDDG']
  
          # Update the CSV headers
          try:
              idx = self.csv_headers.index('Experimental')
              self.csv_headers = self.csv_headers[:idx] + new_idxs + self.csv_headers[idx + 1:]
          except ValueError, e: pass