Identify Unusual Cases Missing Values
The Missing Values tab is used to control handling of user-missing and system-missing values.
- Exclude missing values from analysis. Cases with missing values are excluded from the analysis.
- Include missing values in analysis. Missing values of continuous variables are substituted with their corresponding grand means, and missing categories of categorical variables are grouped and treated as a valid category. The processed variables are then used in the analysis. Optionally, you can request the creation of an additional variable that represents the proportion of missing variables in each case and use that variable in the analysis.
How to set missing value handling
- From the menus choose:
- In the Identify Unusual Cases dialog box, click the Missing Values tab.