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PROC SHEWHART and General Statements

Overview

The PROC SHEWHART statement starts the SHEWHART procedure and it optionally identifies various data sets.

To create a Shewhart chart, you specify a chart statement (after the PROC SHEWHART statement) that specifies the type of Shewhart chart you want to create and the variables in the input data set that you want to analyze. For example, the following statements request \bar{X} and R charts:

   proc shewhart data=values;
      xrchart weight*lot;
   run;

Here, the DATA= option specifies an input data set (VALUES) with the process measurement variable (WEIGHT) and the subgroup-variable (LOT). *

You can use options in the PROC SHEWHART statement to

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