Conceptual

Power BI DatesInPeriod Cumulative Average Calculation Using DateAdd

The abstract theory centers on the mechanism of temporal aggregation using relative interval functions to generate cumulative statistics within a defined filtering context. In the domain of data analysis and business intelligence, this principle relies on defining start points via reference dates (e.g., end-of-period) and calculating backward through fixed number intervals to aggregate values across multiple periods. The formal operation establishes that moving averages are derived by dividing the sum of these cumulatively aggregated sub-intervals by their respective count, ensuring each period reflects a weighted average of its preceding history rather than current-only data.