Re: [igraph] as.dendrogram

[Simone Gabbriellini]

Hi Gabor,

thanks for the help, my version is igraph_nightly_0.6-2030-20100726.tar.gz, 
downloaded from code.google.com

is there something newer? no problem about the indexing for my code...

thanks,
Simone

Il giorno 10/nov/2010, alle ore 12.07, Gábor Csárdi ha scritto:

> Hi Simone,
> 
> based on the output this seems to be the development version of
> igraph. The as.dendrogram() function has been recently rewritten, and
> I don't know what exactly is causing your problem (I don't even know
> which version exactly you are using), but as.dendrogram() seems to
> work fine on the output of walktrap.community() in the latest version.
> 
> The latest version, however, has 1-based vertex/edge indexing, and
> will probably break some of your code.
> 
> Sorry about this,
> Gabor
> 
> On Thu, Nov 4, 2010 at 12:20 PM, Simone Gabbriellini
> <address@hidden> wrote:
>> Hello List,
>> 
>> I have found communities in my graph through the walktrap.community 
>> function. Here's the result:
>> 
>>> mywalktrap
>> Graph community structure calculated with the walktrap algorithm
>> Number of communities (best split): 27
>> Modularity (best split): 0.8075689
>> Membership vector:
>>  [1]  1 19  1  1 10 12 10  0  8 11 15 11 11  1  4  1  1 11 20  1 12  7  1 13 
>> 11 18  6 11 12
>>  [30]  1  5 13 16  1  6 16 21  1  3  1  1  1 13  1 12  3  5  2 26  0 17  2  
>> 6  1  1 11  5 25
>>  [59]  0  0 20 20  5 11  6 11 13  1  8 24 11  5  1  4  0  6 19 13  3 14  1  
>> 6 13 20  4 13  0
>>  [88]  1  1  1 11  1  1  4  5  5 12 14  0  8  5  8  1  2 19  3  3  1  1  3 
>> 10 23  1  5 13  5
>> [117]  1 18 14  7  3  1  2  4 11  0  8  1  1 14 12 21  1 12  5  1  0  1 12 
>> 11  1 17 11 11  1
>> [146] 18 13  4  1  0 12  3 12  1  0 14  9  1  5 22 18  0  1  3  2 22 14  1  
>> 1  1  6  4  9  8
>> [175] 14  3 12  1  8 13 25  1  1  8  1  8  3 11 13 13 19 24 15 13 13 14  7  
>> 0  1 11  1  2 12
>> [204] 17  0  1 13 15  6  0  5 13  1  3 11  1  2  5 14 12 22 26 20  1  1  3  
>> 1  8  6  6  0 11
>> [233] 19  3  1 12 15  1 17 13  1  7  1 21 12  3  1 12 13 15 12 17  1 11  5  
>> 0  0  9 11 11  3
>> [262] 12 16  5  1 11  1  0  3 11  1 23 11 12 13  5  5 15  3  8 12 13 15  1  
>> 5  1 12
>> 
>> maybe I don't understand well the dendrogram structure, but when I call 
>> as.dendrogram I obtain:
>> 
>>> as.dendrogram(mywalktrap)
>> 'dendrogram' with 2 branches and 2 members total, at height 286
>> 
>> which is not really helpful once plotted...
>> 
>> Am I missing something?
>> 
>> thanks in advance for any help!
>> 
>> best,
>> simone
>> _______________________________________________
>> igraph-help mailing list
>> address@hidden
>> http://lists.nongnu.org/mailman/listinfo/igraph-help
>> 
> 
> 
> 
> -- 
> Gabor Csardi <address@hidden>     UNIL DGM
> 
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