ShewhartControlChart.AddWecoLimits Method

Adds lines for the Western Electric Company Rules.

public virtual ControlLimit[] AddWecoLimits();

Return Value

An array containing the four added lines. They are in order with the ControlLimit corresponding to k = -2 first and the ControlLimit corresponding to k = +2 last.

Remarks

These additional lines are at

$\mathit{center} + k\sigma~~~~\mathrm{for}~k=-2,-1,1,2$

The meaning of center and $\sigma$ depend on the chart to which these lines are added. The "LineColor" attribute for these lines is set to yellow.

ShewhartControlChart.AddWecoLimits Method

Return Value

Remarks

See Also