For a List Variable
- Go to "Test variables"
- Pick a List variable
- Click on the settings icon next to the name of the variable
- Identify the lines of the table which correspond to the values you want to ignore
- Match the value(s) you want to ignore under the column "Ignore modality"
- Validate with the "Confirm" button
For a Yes-no variable
As only 2 values are possible for a Yes-no variable, you can not ignore either one or the other.
However, you can consider NC values as Yes or No.
For a Numeric variable
You need to filter the patients you do not want to include in the analysis by using the filter function.