worksheet column has been set to either x or y if ycol is not given, assume only one x column is available grori('datareza',3); setxori('datareza',1); grori('datareza',3); grori('datareza'); grori('datareza'); setxori('datareza',3); grori('datareza'); grori('datareza',[2:2:4],'reza'); grori('datareza',[2:2:4]);