Launch the Explore Missing Values platform by selecting Analyze > Screening > Explore Missing Values.
Figure 22.4 Explore Missing Values Launch Window
For more information about the options in the Select Columns red triangle menu, see “Column Filter Menu” in Using JMP.
Y, Columns
Specifies the columns that you want to analyze.
Validation
Specifies a validation column that is used for some imputation methods.
By
A column or columns whose levels define separate analyses. For each level of the specified column, the corresponding rows are analyzed using the other variables that you have specified. The results are presented in separate reports. If more than one By variable is assigned, a separate report is produced for each possible combination of the levels of the By variables.