From Statistical Process Control to Full Control - 2
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GROUPING = 1

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LSCXLSCX = UCLX = upper control limit for X Chart = XmXm + A2A2 * R
LICXLICX = LCLX = lower control limit for X Chart = XmXm - A2A2 * R where XmXm = X

LSCRLSCR = upper control limit for R Chart = D4D4 * R LICR LICR = lower control limit for R Chart = D3D3 * R

The x and y points of the gaussian chart are calculated as follows:

x = t * S + X

t is a parameter that goes from -4 to +4 step 0,1

It displays the detected values in a chart together with Project Upper Limit (LSS), Project Lower Limit (LIS) and the Target Value.

It displays graphically the values included in each subgroup. When the grouping criteria is 1 it overlaps to the control chart.