How can I find out how to convert the Cypher examples using the Graph Algorithms library to using the new GDS library?
So far I have the GDS library installed in Neo4j 3.5.17 using Neo4j Desktop 1.2.6. I could not figure out how to install GDS with Neo4j 4.0.3. Reading through the discussions here makes me think I should be moving forward with the Graph Data Science library instead of trying to solve the library installation problem I have with the earlier Graph Algorithms library.
When I try this example from the book with my own guesswork conversion to use GDS,
MATCH (source:Place {id: "Amsterdam"}), (destination:Place {id: "London"})
CALL gds.alpha.shortestPath.stream(source, destination, null) YIELD nodeId, cost
RETURN gds.getNodeById(nodeId).id AS place, cost
I get this error,
Procedure call provides too many arguments: got 3 expected no more than 2.
Procedure gds.alpha.shortestPath.stream has signature: gds.alpha.shortestPath.stream(graphName :: ANY?, configuration = {} :: MAP?) :: nodeId :: INTEGER?, cost :: FLOAT?
meaning that it expects at least 1 argument of type ANY?
Description: The Shortest Path algorithm calculates the shortest (weighted) path between a pair of nodes using the Dijkstra algorithm. (line 1, column 81 (offset: 80))
"MATCH (source:Place {id: "Amsterdam"}),
(destination:Place {id: "London"})
CALL gds.alpha.shortestPath.stream(source, destination, null) YIELD nodeId, cost
RETURN gds.getNodeById(nodeId).id AS place, cost"
I am sure I will get better at understading Cypher error messages but until then if anyone can suggest what I need to do or understand to use GDS that would be great!
