Learn R
RNeo4j (version 1.6.4)

dijkstra: Weighted Shortest Paths

Description

Deprecated. Use shortestPath. Retrieve the shortest path between two nodes weighted by a cost property.

Usage

dijkstra(fromNode, relType, toNode, cost_property = character(), direction = "out")

Arguments

fromNode
A node object.
relType
A character string. The relationship type to traverse.
toNode
A node object.
cost_property
A character string. If retrieving a weighted shortest path, the name of the relationship property that contains the weights.
direction
A character string. The relationship direction to traverse. Should be "in" or "out".

Value

A path object.

See Also

allDijkstra

Examples

Run this code
## Not run: 
# graph = startGraph("http://localhost:7474/db/data/")
# clear(graph)
# 
# alice = createNode(graph, "Person", name = "Alice")
# bob = createNode(graph, "Person", name = "Bob")
# charles = createNode(graph, "Person", name = "Charles")
# david = createNode(graph, "Person", name = "David")
# elaine = createNode(graph, "Person", name = "Elaine")
# 
# r1 = createRel(alice, "KNOWS", bob, weight=1.5)
# r2 = createRel(bob, "KNOWS", charles, weight=2)
# r3 = createRel(bob, "KNOWS", david, weight=4)
# r4 = createRel(charles, "KNOWS", david, weight=1)
# r5 = createRel(alice, "KNOWS", elaine, weight=2)
# r6 = createRel(elaine, "KNOWS", david, weight=2.5)
# 
# p = dijkstra(alice, "KNOWS", david, cost_property="weight")
# 
# p$length
# p$weight
# nodes(p)
# ## End(Not run)

Run the code above in your browser using DataCamp Workspace