Quality and Reliability Methods - SAS

Chapter 11 Pareto Plots 187
Launch Dialog Options
Launch Dialog Options
The Threshold of Combined Causes command is described in this section. The Per Unit Analysis
command is described in the section “Defect Per Unit Analysis” on page 192.
Threshold of Combined Causes
This option enables you to specify a threshold for combining causes by specifying a minimum Count or a
minimum Rate. To specify the threshold, select the Threshold of Combined Causes option on the launch
dialog, as shown in Figure 11.9.
Figure 11.9 Threshold Menu
Enter threshold value here.
You then select Tail % or Count in the drop-down menu that appears and enter the threshold value.
For example, using Failure.jmp, specifying a minimum count of 2 resulted in the following Pareto plot. All
causes with counts 2 or fewer are combined into the final bar labeled 4 Others. (Compare to Figure 11.7 to
see which causes were combined).