Now let's narrow our search a bit and find females who eat these brands of yogurt. You can add a base, or filter to accomplish this. To do this, go back to the editor by clicking on the blue Crosstab Editor bar.
In the far right column, you'll see that the rows and columns tab is showing. Click on the bases tab. Go back to the far left variables column and select GENDER. Drag female to the base box. Change the Crosstab name if you wish.
Now you can run the analayses again to get new results. Click the large blue Run Crossstab button at the top to produce the results. Teh screen will open with this image.
Notice the dropdown box that shows female. If you click that you can toggle between female (the base we selected) and study universe which is all adults.