return getTransitionProbabilityMatrix ( getActionValueIndex( action_name ));
if (( action_idx < 0 ) || ( action_idx >= _possible_values.length )) throw new BelievabilityException ( "ActuatorTypeModel.getTransitionProbabilityMatrix()", "Bad index found: " + action_idx );  return _trans_prob[action_idx];
    double[][] getTransitionProbabilityMatrix( String action_name )                throws BelievabilityException    {        return getTransitionProbabilityMatrix                ( getActionValueIndex( action_name ));    } // method getTransitionProbabilityMatrix