Re: [igraph] average local transitivity

[Szabolcs Horvát]

This happens because this is not a simple graph. It has multi-edges.  The "average" computation ignores these, the "local" computation does not. I did not verify if the "local" computation gives reasonable results for multigraphs, though.

On Sat, 27 Oct 2018 at 09:57, Raigo Aljand <address@hidden> wrote:

I added to the attachment the graph that gives me these results. It is
saved in edgelist format.

27.10.18 10:42 Gábor Csárdi kirjutas:
> Please provide a reproducible example.
>
> Gabor
> On Sat, Oct 27, 2018 at 7:13 AM Raigo Aljand <address@hidden> wrote:
>> Hello,
>>
>> I have a simple question. I looked at the archives, but it doesn't seem
>> anyone has asked this nor does it seem to be written in the documentation.
>>
>> Why do these two give me different results?
>>
>> transitivity(graph, type = "average")
>> 0.3772343
>> mean(transitivity(graph, type = "local"), na.rm = TRUE))
>> 0.2014909
>>
>> I understand the difference between global and local transitivity and
>> what I read from the internet type="average" should give me the average
>> local transitivity. Then why does the igraph average give me a different
>> result from when I calculate the average with R. What is also strange is
>> that type="average" is either no longer or has never been documented in
>> the official documentation.
>>
>> If it helps, my graph is directed, but as I understand it, igraph
>> ignores the direction of the edges.
>>
>> My version of igraph is Ubuntu 18.04 package r-cran-igraph with version
>> 1.1.2 and R is from the package r-base with version 3.4.4
>>
>> Thank you for your help.
>>
>>
>>
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