docs: def _log_file_ind(self,inum):
          """
          Information about available profile.data or log.data files.
  
          Parameters
          ----------
          inum : integer
              Attempt to get number of inum's profile.data file.
              inum_max: max number of profile.data or log.data files
              available
  
          """
  
          self._profiles_index()
          if inum <= 0:
              print("Smallest argument is 1")
              return
  
          inum_max = len(self.log_ind)
          inum -= 1
  
          if inum > inum_max:
              print('There are only '+str(inum_max)+' profile file available.')
              log_data_number = -1
              return log_data_number
          else:
              log_data_number=self.log_ind[self.model[inum]]
              print('The '+str(inum+1)+'. profile.data file is '+ \
                    str(log_data_number))
              return log_data_number