Exclude & Include
If you need to exclude data from statistical analysis, then you:
To include data that have been excluded, you:
Data that have been marked as excluded in the spreadsheet will be displayed in red, but you can select a different color in the Format spreadsheet box.
The Exclude and Include commands are also available in the spreadsheet shortcut menu (after right-clicking).
In the following example the age for case 4 has been excluded. In addition, cases 6 and 7 are entirely excluded.