Customizing a Histogram

HISTOGRAM Statement

Customizing a Histogram

See CAPHST1 in the SAS/QC Sample Library

This example is a continuation of the preceding example. The following statements show how you can use HISTOGRAM statement options and INSET statements to customize a histogram:

   title 'Process Capability Analysis of Plating Thickness';
   legend1 frame cframe=ligr cborder=black position=center;
   proc capability data=trans noprint;
      spec lsl = 3.45 llsl = 2 clsl = black
           usl = 3.55 lusl = 3 cusl  =black;
      histogram thick / normal(color=yellow w=3)
                        midpoints = 3.4 to 3.6 by 0.025
                        vscale    = count
                        cfill     = blue
                        nospeclegend
                        legend    = legend1
                        cframe    = ligr;
      inset lsl usl    / cfill = blank cfill = ywh;
      inset n mean (5.2) cpk (5.2) / cfill = blank cfill = ywh;
   run;

The histogram is displayed in Figure 4.5.

Figure 4.5: Customizing the Appearance of the Histogram

The MIDPOINTS= option specifies a list of values to use as bin midpoints. The VSCALE=COUNT option requests a vertical axis scaled in counts rather than percents. The CFILL= option specifies a color for the histogram bars. The INSET statements inset the specification limits and summary statistics. The NOSPECLEGEND option suppress the default legend for the specification limits that is shown in Figure 4.4.

For more information about HISTOGRAM statement options, see "Dictionary of Options". For details on the INSET statement, see Chapter 5, "INSET Statement" .

Chapter Contents
Previous
Next
Top