The M2 measure is thought to be held primarily by households. The third aggregate, M3 is no longer published. Prior to this discontinuation, M3 had included
https://books.google.com/books?id=8XcPjwEACAAJ. "Pregel and its little sibling aggregateMessages() are the cornerstones of graph processing in GraphX. ... algorithms
Statistic - StatBank - data and statistics”. statbank.cso.ie. 2020年6月6日閲覧。 ^ “Actual and Percentage Change in Population by Sex, Aggregate Town or Rural Area