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ShewhartControlChartAddWecoLimits Method
Adds lines for the Western Electric Company Rules.

Namespace: Imsl.Chart2D.QC
Assembly: ImslCS (in ImslCS.dll) Version:
public virtual ControlLimit[] AddWecoLimits()

Return Value

Type: ControlLimit
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.
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.
See Also