CODEWITHSUNDEEP
rigraph
JACKY88
JACKY88

Reputation: 3557

What does "N" mean for an igraph object in R?

I use igraph package in R and create a simple graph named g. In the first row of the output using str(g), I figured the first letter can be U or D for undirected and directed graphs. The third letter can be W for weighted graph. The fourth letter can be B for bipartite graph.

What does the second letter mean? Hopefully my understanding is right for the other three letters. I tried the igraph help file but can't find an answer. Thanks.

> g <- graph.formula(1-2, 1-3, 1-4, 2-4)
> str(g)
IGRAPH UN-- 4 4 -- 
+ attr: name (v/c)
+ edges (vertex names):
[1] 1--2 1--3 1--4 2--4

Upvotes: 0

Views: 123

Answers (1)

bergant
bergant

Reputation: 7232

N is for named graph. See ?is.named. And yes for the other three letters.

Documentation: see details in ?str.igraph or ?print.igraph

Upvotes: 4

Related Questions