RuleEvaluationContext.SupportsSigmaZones Property

public bool SupportsSigmaZones { get; }

Public ReadOnly Property SupportsSigmaZones As Boolean
	Get

public:
property bool SupportsSigmaZones {
	bool get ();
}

member SupportsSigmaZones : bool with get

Property Value

This is true for fixed-limit variables series (Individuals, XBar, R, S, NP, C with constant sample size) and false for pointwise-limit series (P/U with variable sizes, EWMA) because those charts do not have a single scalar sigma that defines uniform zone boundaries.

Rules that rely on sigma zones must check this property before calling the sigma-zone helpers and return an empty violation list when it is false.

Reference