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Maptitude® On-Line Training

Introductory Maptitude: Lesson 4

Dataviews

4.18 Editing and Updating Data: Formula Fields
  • A field in a dataview that stores a formula and allows Maptitude to compute results on the fly

To compute new data based on data you already have, you add, subtract, multiply, or divide the existing data. You can have Maptitude do these calculations for you by creating a formula and storing it in a formula field.

To get a value for the formula field (say, to make a thematic map, or to display a dataview), Maptitude computes the value the moment it is needed. If someone updates the data used in the calculation, the numbers always will be correct and up-to-the-minute.

You can also store the result of the formula in an existing column of a dataview. To do so, you use the Edit-Fill command, and choose Formula as the method.