Examples of the Multiple Response Tab

The following examples use sample data tables that contain the same information organized in different data table layouts. The data come from testing a fabrication line on three different occasions under two different conditions. Each set of operating conditions (or batch) yielded 50 units for inspection. Inspectors recorded seven types of defects. Each unit could have zero, one, or more than one defect. A unit could have more than one defect of the same kind.

Multiple Response

The Failure3MultipleField.jmp sample data table has a row for each unit and multiple columns for defects, where defects are entered one per column. In this example, there are three columns for defects. Thus, any one unit had at most three defects.

Select Help > Sample Data Library and open Quality Control/Failure3MultipleField.jmp.

Select Analyze > Consumer Research > Categorical.

Select Failure1, Failure2, and Failure3.

On the Multiple tab, click Multiple Response.

Select clean and date and click X, Grouping Category.

Click OK.

Figure 4.18 Multiple Response Report

The Crosstab table has a row for each batch and a column for each defect type. The frequency, share, and rate of each defect within each batch are shown in the table cells. For example, for the batch after cleaning on OCT 1, there were 12 contamination defects representing 12/23 or 52.2% of defects for that batch. The 12 contamination defects were from 50 units. Therefore, the rate per unit was 24%.

Multiple Response by ID

The Failure3ID.jmp sample data table has a row for each defect type within each batch, a column for the number of each defect type, and an ID column for each batch.

Figure 4.19 Failure3ID Data Table (Partial Table)

Select Help > Sample Data Library and open Quality Control/Failure3ID.jmp.

Select Analyze > Consumer Research > Categorical.

Select failure and click Multiple Response by ID on the Multiple tab.

Select clean and date and click X, Grouping Category.

Select SampleSize and click Sample Size.

Select N and click Freq.

Select ID and click ID.

Click OK.

The resulting report is the same as the report shown in Figure 4.18.

Multiple Delimited

The Failures3Delimited.jmp sample data table has a row for each unit with a single column in which the defects are recorded, delimited by a comma. Note in the partial data table, shown in Figure 4.20, that some units did not have any observed defects, so the failureS column is empty.

Figure 4.20 Failure3Delimited.jmp Data Table (Partial Table)

Select Help > Sample Data Library and open Quality Control/ Failures3Delimited.jmp.

Select Analyze > Consumer Research > Categorical.

Select failureS and click Multiple Delimited on the Multiple tab.

Select clean and date and click X, Grouping Category.

Click OK.

When you click OK, you get the report in Figure 4.18

Note: If more than one delimited column is specified, separate analyses are produced for each column.

Indicator Group

The Failures3Indicators.jmp sample data table has a row for each unit and indicator columns for each defect type. The data entry in each defect columns is a 0 if that defect was not observed and a 1 if the defect was observed for the unit.

Figure 4.21 Faliure3Indicators.jmp Data Table (Partial Table)

Select Help > Sample Data Library and open Quality Control/Failures3Indicators.jmp.

Select Analyze > Consumer Research > Categorical.

Select contamination, corrosion, doping, metallization, miscellaneous, oxide defect, and silicon defect and click Indicator Group on the Multiple tab.

Select clean and date and click X, Grouping Category.

Click OK.

When you click OK, you get the report in Figure 4.18.

Response Frequencies

The Failure3Freq.jmp sample data table has a row for each batch, columns for each defect type, and a column for the batch size. The data entries in the defect columns are the frequency of occurrence of the defect in the batch.

Figure 4.22 Failure3Freq.jmp Data Table

Select Help > Sample Data Library and open Quality Control/Failure3Freq.jmp.

Select Analyze > Consumer Research > Categorical.

Select the frequency variables (contamination, corrosion, doping, metallization, miscellaneous, oxide defect, silicon defect).

On the Multiple tab, click Response Frequencies.

Select clean and date and click X, Grouping Category.

Select Sample Size and click Sample Size.

Click OK.

Figure 4.23 Defect Rate Output

The resulting output is the same as that in Figure 4.18 with the exception of the Total Cases Responding column in the Crosstab table. Here, the defect data was summarized. From the summarized table, there is no record of the number of units with zero defects. Thus, the Total Cases Responding is the full batch size of 50 for each batch.