multi-dimensional aggregation + aggregation functions for community sizes etc.

[jexp]

For a property you want to have more than one statistic:

size, count, avg, median, ...

which is probably already covered by apoc.agg.stats()

but then, how about multi-dimensional aggregation.

e.g.

apoc.agg.multiStats([key1,key2,key3]) -> Map<Key,Map<agg="sum,count,avg", number>>

e.g.

match (p:Person)
with apoc.agg.multiStats(p, ["wcc","lpa","louvain"]) as data
match (p:Person) 
return p.name, data[toString(p.wcc)].count as size

see
https://community.neo4j.com/t/listing-the-community-size-of-different-community-detection-algorithms-already-calculated/42895/2?u=michael.hunger

[jexp]

see also

https://community.neo4j.com/t/how-could-to-replace-groupe-by-roll-up-and-group-by-cube-in-cypher-aggregation/44762

https://docs.oracle.com/cd/F49540_01/DOC/server.815/a68003/rollup_c.htm