In SPC is it possible to get R bar charts.

Hi All,

I am clear with how to get Cp, cPk and control chart  in SAP QM (SPC), i want to know whether Rbar charts  are supported / possible in SAP or not. R is nothing but variation with the readings of each group and plot of that variation  is R bar chart.

Please give your inputs whether R bar charts possible in SAP.

Best Regards,

Shekhar