Entering Missing Values in Data Entry
By default, missing values are not allowed. However, if you select the Allow Missing Value for all Non-ID Fields Data Entry Build Option, you will be allowed to enter a missing value for any item that is not an identifier variable.
Enter missing value codes in one of the following ways:
- Select Code|Missing
- Click the Missing toolbar button
- Enter a period (.) into the data field.
Tip: The Code|Missing command and button will be enabled only if missing values are allowed.
A period (.) will be written to the Data File for all missing data items.