Weijia, centralization was not included in igraph, because really, it
takes only writing a one line function to do it. But it is on our TODO
list and will be included soon.
E.g. for degree see the thread that starts here:
http://lists.gnu.org/archive/html/igraph-help/2008-11/msg00064.html
You can do it similarly for other measures, but first you need to find
out which structure is the most centralized for a given measure. E.g.
for degree it is the star graph, but not for eigenvector centrality.
Probably this is written in the classic Wasserman-Faust book.
Best,
Gabor
On Sun, Nov 30, 2008 at 1:37 PM, Weijia You <weijiawx at gmail.com>
wrote:> Hi all,
>
> Is there anyone who ever used igraph to calculate the index of
> "centralization" ?
> I tried my best but can't find it in igraph.
>
> The brief introduction to "centralization" can be found here ,
and I think
> it's an important index for measuring the centrality on the aggregated
> level.(http://faculty.ucr.edu/~hanneman/nettext/C10_Centrality.html)
>
> Thank you for any comments and suggestions.
>
> Best wishes!
>
> Weijia
>
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>
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--
Gabor Csardi <Gabor.Csardi at unil.ch> UNIL DGM