INSET Statement

Getting Started

This section introduces the INSET statement with a basic example showing how it is used. See Chapter 45, "INSET and INSET2 Statements," in Part 9, "The SHEWHART Procedure," for a complete description of the INSET statement.

This example is based on the same scenario as the first example in the "Getting Started" section of Chapter 20, "EWMACHART Statement." An EWMA chart is used to analyze data from the manufacture of metal clips. The following statements create a data set containing measurements to be analyzed and the EWMA chart shown in Figure 22.1.

   data clips1;
      input day @ ;
      do i=1 to 5;
         input gap @ ;
         output;
         end;
      drop i;
      datalines;
    1  14.76  14.82  14.88  14.83  15.23
    2  14.95  14.91  15.09  14.99  15.13
    3  14.50  15.05  15.09  14.72  14.97
    4  14.91  14.87  15.46  15.01  14.99
    5  14.73  15.36  14.87  14.91  15.25
    6  15.09  15.19  15.07  15.30  14.98
    7  15.34  15.39  14.82  15.32  15.23
    8  14.80  14.94  15.15  14.69  14.93
    9  14.67  15.08  14.88  15.14  14.78
   10  15.27  14.61  15.00  14.84  14.94
   11  15.34  14.84  15.32  14.81  15.17
   12  14.84  15.00  15.13  14.68  14.91
   13  15.40  15.03  15.05  15.03  15.18
   14  14.50  14.77  15.22  14.70  14.80
   15  14.81  15.01  14.65  15.13  15.12
   16  14.82  15.01  14.82  14.83  15.00
   17  14.89  14.90  14.60  14.40  14.88
   18  14.90  15.29  15.14  15.20  14.70
   19  14.77  14.60  14.45  14.78  14.91
   20  14.80  14.58  14.69  15.02  14.85
   ;

   title 'EWMA Chart for Gap Measurements';
   symbol v=dot c=salmon;
   proc macontrol data=clips1;
      ewmachart gap*day / weight   = 0.3
                          cframe   = vibg
                          cinfill  = ligr
                          coutfill = yellow
                          cconnect = salmon
                          nolegend;
      inset stddev weight / cfill = ywh;
   run;

Figure 22.1: Exponentially Weighted Moving Average Chart with an Inset

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