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Non-Additive Fact
Definition
A type of data metric that cannot be summed across dimensions (such as time periods, products, or geographies) without producing incorrect results. Non-additive facts require specific aggregation methods (e.g., averages, ratios, or weighted calculations) to be interpreted correctly.
How It's Calculated
Example
A brand’s average price is a non-additive fact—it cannot be summed across stores or weeks, and must instead be recalculated using total dollars and total units to ensure accuracy.
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