Hi Marco,

On Wed, Jan 15, 2014 at 5:49 AM, Marco Milano <[email protected]> wrote:

> Dear igraph list,
>
> I'm currently working on extracting node-level properties from a social
> network and I'm stuck with the triad census calculation. As there isn't a
> function to call on the graph to perform such task, this is the most
> updated solution I found so far:
> http://stackoverflow.com/questions/12374534/how-to-mine-for-motifs-in-r-with-igraph
> .
>

actually there is triad.census:
http://igraph.sourceforge.net/doc/R/triad.census.html


>
> When I try to iterate the triad census on each node in my graph though, I
> get some strange results. First of all, being an undirected graph I should
> be getting 4 values but instead I get 16. Moreover, I don't know which
> resulting census corresponds to which node. The name attribute I call to
> iterate on the list of nodes seems to contain the NULL value but it
> correctly contains the vertex names at graph level before calling the
> graph.neighborhood function.
>

To be honest, it is hard to follow what you are doing, without seeing your
code. If just calling triad.census() is not an option for you, then please
include your code. Thanks.

Best,
Gabor


>
> My problem is: how can I have each node printed out along with its triad
> census?
> And, please forgive me for adding a side-question to my main one but seen
> that we are talking about triads, I was wondering if anyone is aware of a
> way to calculate the Kalish & Robins Strong-Weak-NoTie relation?
>
> Thanks. I appreciate any help or advice.
>
>
> Marco
>
>
> --
> *Find me on LinkedIn:*
> linkedin.com/in/marcomilano <http://www.linkedin.com/in/marcomilano>
>
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