library(graphframes)
g <- gf_friends(sc)
gf_bfs(g, from_expr = "name = 'Esther'", to_expr = "age < 32")
Breadth-first search (BFS)
R/gf_bfs.R
gf_bfs
Description
Breadth-first search (BFS)
Usage
gf_bfs(x, from_expr, to_expr, max_path_length = 10, edge_filter = NULL,
...) Arguments
| Arguments | Description |
|---|---|
| x | An object coercable to a GraphFrame (typically, a gf_graphframe). |
| from_expr | Spark SQL expression specifying valid starting vertices for the BFS. |
| to_expr | Spark SQL expression specifying valid target vertices for the BFS. |
| max_path_length | Limit on the length of paths. |
| edge_filter | Spark SQL expression specifying edges which may be used in the search. |
| … | Optional arguments, currently not used. |