CODEWITHSUNDEEP
pythonigraph
user3067923
user3067923

Reputation: 447

get neighbors of specific node in python using iGraph

I am trying to get the neighbors of a specific node in my graph. Graph looks like this

print g

IGRAPH UN-- 6 3 --
+ attr: name (v), position (v)
+ edges (vertex names):
40--115, 116--98, 44--98

g.vs['name]
[116, 40, 44, 115, 98, 116]

I have tried to use the following to get the neighbors of 40

g.neighbors(g.vs['name'][1])

but I get the following error: 

InternalError: Error at type_indexededgelist.c:750: cannot get neighbors, Invalid vertex id

I have also tried this, but get a different error

g.neighbors('40')

ValueError: no such vertex: '40'

any ideas?

Upvotes: 2

Views: 1450

Answers (1)

Tomas Ruiz
Tomas Ruiz

Reputation: 36

You are passing the function neighbors a string, but it expects an integer or Vertex object. try:

g.neighbors(g.vs[1])

or

g.neighbors(1)

Upvotes: 1

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