Understand relationship aggregation
4.1 · Lesson

Understand relationship aggregation

You've learned how to use existing Full definition for relationship (opens in a new tab)A named, directed connection between two nodes. Every relationship has a type, a start node and an end node. Full definition for property (opens in a new tab)A named value stored on a node or a relationship. as weights in your Full definition for projection (opens in a new tab)An in-memory copy of part of your database that graph algorithms run against. You choose which nodes and relationships it holds.. You have also learned how to project Full definition for undirected relationship (opens in a new tab)A relationship with no direction. Neo4j GDS represents them as parallel relationships in opposite directions..

But what if you need to create weights by combining multiple relationships?