code: def do_table(self, arg):
          
          usable, filename, append = self._redirect_split(arg)
          a = self.tests[self.active]
          args = self.curargs
          self._make_fits()
          result = a.table(args["independent"], args["dependents"], args["threshold"],
                           args["headings"], args["functions"])
          if result is not None:
              self._redirect_output(result, filename, append, msg.info)
docs: Prints the set of values for the independent vs. dependent variables in the
          active unit test and analysis group as a table.