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The SHEWHART Procedure

Default Labels

If a label is not associated with the subgroup-variable, the default horizontal axis label is "Subgroup Index (subgroup-variable)." The default vertical axis label for a primary chart identifies the chart type and the process variable. The default vertical axis label for a secondary chart identifies the chart type only.

For example, the following statements create and charts with default labels using the data set Parts given in Displaying Stratified Process Data. The resulting charts are displayed in Figure 13.43.55.

symbol v=none w=1;
title 'Control Chart for Diameter';
proc shewhart history=Parts;
   xschart Diam*Sample;
run;

Output 13.43.55 Control Charts with Default Labels
Control Charts with Default Labels

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