ShewhartControlChart.AddWecoLimits Method

ShewhartControlChartAddWecoLimits Method

Adds lines for the Western Electric Company Rules.

Namespace: Imsl.Chart2D.QC
Assembly: ImslCS (in ImslCS.dll) Version: 6.5.2.0

Syntax

public virtual ControlLimit[] AddWecoLimits()

Public Overridable Function AddWecoLimits As ControlLimit()

public:
virtual array<ControlLimit^>^ AddWecoLimits()

abstract AddWecoLimits : unit -> ControlLimit[] 
override AddWecoLimits : unit -> ControlLimit[]

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.

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.

Reference

ShewhartControlChart Class

Imsl.Chart2D.QC Namespace