Re: [igraph] igraph vertex index

[Szabolcs Horvát]

Hi,

The starting index in R should be 1, not 0.  This corresponds to R's 1-based array indexing.

There are some functions which will sometimes (incorrectly) return 0-based indices, see e.g. here:

http://lists.nongnu.org/archive/html/igraph-help/2013-05/msg00002.html

On 9 May 2013 11:41, ash nix <address@hidden> wrote:

Hi,

I am new to igraph and confused about the starting index for vertex.

Many documentation says that starting index for vertex in R is 0.

But on R I get the starting index as 1.

Please following

> V(kap)[0]

Vertex sequence:

character(0)

> V(kap)[1]

Vertex sequence:

[1] "moskowitz"

--
Thanks,
A

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