Select the Mask tab under the Data Analysis tab in the Display Profiles screen, as shown in the following image.

The Mask tab specifies the number of times (FM_count) a particular format of data (FM_ value) is repeated and calculates the percentage based on the count.

The formats of data include:

• W - Word
• L - Letter
• (.) - Null
• a - small alphabets
• 9 or D - Digits
• ( _) - space
• 0
• # etc are literal