docs: def load_model_from_file(self, filename):
          """Load one parameter set from a file which contains one value per line
  
          No row is skipped.
  
          Parameters
          ----------
          filename : string, file path
              Filename to loaded data from
  
          Returns
          -------
          pid : int
              ID of parameter set
          """
          assert os.path.isfile(filename)
          data = np.loadtxt(filename).squeeze()
          assert len(data.shape) == 1
          pid = self.add_data(data)
          return pid