Launch the CUSUM Control Chart Platform

Launch the CUSUM Control Chart platform by selecting Analyze > Quality and Process > Control Chart > CUSUM Control Chart.

Figure 10.4 The CUSUM Control Chart Launch Window 

For more information about the options in the Select Columns red triangle menu, see Column Filter Menu in Using JMP.

The CUSUM Control Chart platform launch window contains the following options:

Y

Identifies the variables that you want to chart.

Note: The rows of the data table must be sorted in the order in which the observations were collected.

X

Identifies a subgroup variable. The horizontal axis of the CUSUM chart is labeled by the subgroup variable. If a value of this column is present more than once, the average response at each X value is plotted on the CUSUM chart.

By

Produces a separate report for each level of the By variable. If more than one By variable is assigned, a separate report is produced for each possible combination of the levels of the By variables.

Show Excluded Region

(Applicable only when an X variable is specified.) Specifies that subgroups that are entirely excluded are shown on the horizontal axis in the CUSUM control chart.

Data Units

Specifies that data units be used in the report rather than standard deviation units. By default, the chart and parameters are shown in standard deviation units. However, if you select the Data Units option in the launch window, the chart and parameters are shown in the units of the data column that is being analyzed.

When you use standard deviation units, values for the h and k parameters do not depend on the process standard deviation. This can be an advantage.