code: def change_result(self, old_result_name, new_result_name, new_er_data=None,
                        new_pmag_data=None, spec_names=None, samp_names=None,
                        site_names=None, loc_names=None, replace_data=False):
          
          result = self.find_by_name(old_result_name, self.results)
          if not result:
              msg = '-W- {} is not a currently existing result, so it cannot be updated.'.format(old_result_name)
              print(msg)
              return False
          else:
              specimens, samples, sites, locations = None, None, None, None
              if spec_names:
                  specimens = [self.find_or_create_by_name(spec, self.specimens, 'specimen') for spec in spec_names]
              if samp_names:
                  samples = [self.find_or_create_by_name(samp, self.samples, 'sample') for samp in samp_names]
              if site_names:
                  sites = [self.find_or_create_by_name(site, self.sites, 'site') for site in site_names]
              if loc_names:
                  locations = [self.find_or_create_by_name(loc, self.locations, 'location') for loc in loc_names]
  
              result.change_result(new_result_name, new_pmag_data, specimens, samples,
                                   sites, locations, replace_data)
              return result
docs: Find actual data object for result with old_result_name.
          Then call Result class change method to update result name and data.