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Aggregate data is high-level data which is acquired by combining individual-level data. For instance, the output of an industry is an aggregate of the firms’ individual outputs within that industry. [1] Aggregate data are applied in statistics, data warehouses, and in economics. There is a distinction between aggregate data and individual data.
The information is packaged into aggregate reports and then sold to businesses, as well as to local, state, and government agencies. This information can also be useful for marketing purposes. In the United States, many data brokers' activities fall under the Fair Credit Reporting Act (FCRA) which regulates consumer reporting agencies .
Aggregate reporting, also known as periodic reporting, plays a key role in the safety assessment of drugs. Aggregate reporting involves the compilation of safety data for a drug over a prolonged period of time (months or years), as opposed to single-case reporting which, by definition, involves only individual AE reports.
An aggregate is a type of summary used in dimensional models of data warehouses to shorten the time it takes to provide answers to typical queries on large sets of data. The reason why aggregates can make such a dramatic increase in the performance of a data warehouse is the reduction of the number of rows to be accessed when responding to a query.
Aggregate functions present a bottleneck, because they potentially require having all input values at once. In distributed computing , it is desirable to divide such computations into smaller pieces, and distribute the work, usually computing in parallel , via a divide and conquer algorithm .
Freddie Mac weekly mortgage report: Rates increase once again. Freddie Mac reports an average 6.54% for a 30-year fixed-rate mortgage, up 10 basis points from last week's average 6.44%, according ...
The report is now expected to be made public after the House’s final day of votes this year as lawmakers leave Washington for the holidays, those sources said. The vote, ...
In any report or article, the structure of the sample must be accurately described. [ 124 ] [ 125 ] It is especially important to exactly determine the structure of the sample (and specifically the size of the subgroups) when subgroup analyses will be performed during the main analysis phase.