Individual chart calculations

Individual chart control limits are calculated as follows:

NOTE: Run chart analysis is always performed on individual data (the subgroup is always 1). However, if a subgroup ID column is specified (not recommended), then subgroup averages are treated as individual data.

Data Plot Items

• Individual Value

• Lower Control Limit (LCL) (optional)

• Upper Control Limit (UCL) (optional)

NOTE: No warning lines are shown on the chart; however, alarming is based on warning lines.

Descriptive Statistics

• Lower Control Limit (LCL)

• Upper Control Limit (UCL)

• Center Line (CL)

See Also

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