Delete edges from a graph

Delete edges from a graph

delete_edges(graph, edges)

Arguments

graph

The input graph.

edges

The edges to remove, specified as an edge sequence. Typically this is either a numeric vector containing edge IDs, or a character vector containing the IDs or names of the source and target vertices, separated by |

Value

The graph, with the edges removed.

See also

Other functions for manipulating graph structure: +.igraph(), add_edges(), add_vertices(), complementer(), compose(), connect(), contract(), delete_vertices(), difference(), difference.igraph(), disjoint_union(), edge(), igraph-minus, intersection(), intersection.igraph(), path(), permute(), rep.igraph(), reverse_edges(), simplify(), union(), union.igraph(), vertex()

Examples

g <- make_ring(10) %>%
  delete_edges(seq(1, 9, by = 2))
g
#> IGRAPH ca688dd U--- 10 5 -- Ring graph
#> + attr: name (g/c), mutual (g/l), circular (g/l)
#> + edges from ca688dd:
#> [1] 2-- 3 4-- 5 6-- 7 8-- 9 1--10

g <- make_ring(10) %>%
  delete_edges("10|1")
g
#> IGRAPH f7ae65c U--- 10 9 -- Ring graph
#> + attr: name (g/c), mutual (g/l), circular (g/l)
#> + edges from f7ae65c:
#> [1] 1-- 2 2-- 3 3-- 4 4-- 5 5-- 6 6-- 7 7-- 8 8-- 9 9--10

g <- make_ring(5)
g <- delete_edges(g, get_edge_ids(g, c(1, 5, 4, 5)))
g
#> IGRAPH 7038de0 U--- 5 3 -- Ring graph
#> + attr: name (g/c), mutual (g/l), circular (g/l)
#> + edges from 7038de0:
#> [1] 1--2 2--3 3--4