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Learning Tableau 10 - Second Edition by Joshua N. Milligan

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Scope and direction

Scope and direction are terms that describe how a table calculation is computed relative to the table. When a table calculation is relative to the layout of the table, rearranging the fields in the view will not change the scope and direction.

  • Scope: The scope defines the boundaries within which a given table calculation can reference other values
  • Direction: The direction defines how the table calculation moves within the scope

You've already seen table calculations being calculated Table (across) (for example, the running sum of Sales over time) and Table (down) (for example, the preceding table ). In these cases, the scope was the entire table and the direction was either across or down. You may recall that the running total ...

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