code: def row_to_dict(cls, row):
          
          comment_code = row[3]
          if comment_code.lower() == 'na':
              comment_code = ''
          comp1 = row[4]
          if comp1.lower() == 'na':
              comp1 = ''
          comp2 = row[5]
          if comp2.lower() == 'na':
              comp2 = ''
          chart = row[6]
          if chart.lower() == 'na':
              chart = ''
          notes = row[7]
          if notes.lower() == 'na':
              notes = ''
          return {
              'name': row[0],
              'date': row[1],
              'magnitude': row[2],
              'comment_code': comment_code,
              'comp1': comp1,
              'comp2': comp2,
              'chart': chart,
              'notes': notes,
          }
docs: Converts a raw input record to a dictionary of observation data.
  
          :param cls: current class
          :param row: a single observation as a list or tuple