Defining a new base
Defining a new base (or filter) for a table is only marginally more difficult than changing the Title or Banner. Simply drag a variable from the Variable Index and drop it into one of the three available Base Areas and a list of codes for that variable is displayed in a new window. Select the code that you wish to base the table on and press the OK button.
Dropping the variable on a populated base area will overwrite that base, but if you want to build up a complex filter, you can drop the new base into a vacant base area. There are three available (additive) base areas you can add to. More complicated filters need to be created as New Variables.
There is a check box on the list of codes available that you can use to easily 'NOT' that code (e.g. NOT 'Under 25' defines all those 25 and over).
When you define a new base, U-Tab assumes that you want to view other variables on the same (new) base. The base definitions are therefore locked (see Locking and unlocking bases).
To see how you can add a new base to your tables and still use bases you have previously saved, please go to Using previously saved bases with a locked user-defined base.
See also: Advanced topic: Cell bases.