Aggregated

Aggregated is the past participle of aggregate, meaning brought together into a whole. In statistics and data processing, aggregated data or results are derived by combining multiple individual observations, records, or components to produce a summary value or set of values.

Aggregation in statistics and data processing summarizes data across one or more dimensions, using operations such as sum, count, average, minimum, and maximum. It reduces detail to enable analysis of trends, frequencies, or totals, often by grouping data into categories or time periods.

In computing, aggregated data may be produced on the server side and delivered as a snapshot, sometimes with privacy-preserving transformations. Common mechanisms include aggregation pipelines, MapReduce, and OLAP cubes.

In economics and finance, aggregated figures describe totals across markets or entities, such as aggregated demand, supply, or earnings. Consolidated financial statements report the combined results of multiple subsidiaries.

Etymology: from Latin aggregatus, past participle of aggregare, formed from ad- “toward” and grāre “to group.”

Limitations: aggregation can obscure distributions and outliers; misapplication may yield misleading results, and privacy concerns can arise if data are not anonymized.

See also: aggregate, data aggregation, summarization.