XCHART Statement: CUSUM Procedure
- Overview
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Getting Started
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Syntax
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DetailsBasic Notation for Cusum ChartsFormulas for Cumulative SumsDefining the Decision Interval for a One-Sided Cusum SchemeDefining the V-Mask for a Two-Sided Cusum SchemeDesigning a Cusum SchemeCusum Charts Compared with Shewhart ChartsMethods for Estimating the Standard DeviationOutput Data SetsODS TablesODS GraphicsInput Data SetsMissing Values
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Examples
Defining the Decision Interval for a One-Sided Cusum Scheme
The height of the decision interval is h, expressed as a multiple of the standard error of the subgroup mean. You can specify h with the H= option in the XCHART statement or with the variable _H_ in a LIMITS= data set. The decision interval is displayed as a horizontal line on the cusum chart, as illustrated in Figure 6.13.
Figure 6.13: Decision Interval
