protege和neo4j联系,Neo4j-计算和根据关系属性设置节点属性

I want to know, if it's possible to calculate & set (update) a node property based relation properties (incoming&outgoing)?

In my example, I would like to calculate an user personal "strength factor" (Kind of average) based on his relationships duration (int) divided by the count (int).

Thanks for your help in advance,

Cheers

解决方案

Yes, it's possible. The only trick is that you have to use WITH to first perform the aggregation (for calculating the average):

MATCH (n)-[r:RELTYPE]->()

WITH n, avg(r.duration) AS strength

SET n.strength = strength