Use this if you are using igraph from R
| delete_edges {igraph} | R Documentation | 
Delete edges from a graph
delete_edges(graph, edges)
graph | 
 The input graph.  | 
edges | 
 The edges to remove, specified as an edge sequence.  | 
The graph, with the edges removed.
Other functions for manipulating graph structure: 
+.igraph(),
add_edges(),
add_vertices(),
delete_vertices(),
edge(),
igraph-minus,
path(),
vertex()
g <- make_ring(10) %>%
  delete_edges(seq(1, 9, by = 2))
g
g <- make_ring(10) %>%
  delete_edges("10|1")
g