def cancelPendingResultsFor( self, ps ):
        """Cancel all pending results for the given parameters. Note that
        this only affects the notebook's record, not any job running in a lab.

        :param ps: the parameters"""
        k = self._parametersAsIndex(ps)

        if k in self._results.keys():
            # remove from results
            rs = self._results[k]
            js = [ j for j in rs if not isinstance(j, dict) ]
            self._results[k] = [ rc for rc in rs if isinstance(rc, dict) ]

            # ...and from pending jobs list
            for j in js:
                del self._pending[j]