SPECHART
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The SPECHART statement produces a control chart of the squared prediction error (SPE) statistics based on a principal component model that the MVPMODEL procedure computes. In a Phase I analysis, the SPE statistics are computed by PROC MVPMODEL and read from the HISTORY= data set. In a Phase II analysis, the SPE statistics are computed by the MVPMONITOR procedure from information about the principal component model that is specified in the LOADINGS= data set.
Table 13.2 summarizes the options available in the SPECHART statement. For detailed descriptions, see the section Common Chart Statement Options.
Table 13.2: SPECHART Statement Options
Option |
Description |
---|---|
Specifies the probability used to compute SPE chart limits |
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Creates contribution plots for points outside control limits |
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Specifies that an SPE chart be displayed only if there are points lying outside control limits |
|
Specifies the time interval between consecutive positions on an SPE chart |
|
Suppresses creation of an SPE chart |
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Suppresses the horizontal axis label of an SPE chart |
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Suppresses the vertical axis label of an SPE chart |
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Specifies the number of horizontal axis plotting positions per panel |
|
Adds a footnote to an SPE chart |
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Adds a secondary footnote to an SPE chart |
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Specifies a title for an SPE chart |
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Specifies a secondary title for an SPE chart |
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Creates a SAS data set that contains a summary of an SPE chart |
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Specifies that separate sequences of observations be plotted in a single SPE chart |
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Specifies SERIES variable values selecting sequences to be plotted |
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Specifies the number of panels used to display an SPE chart |