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Re: [igraph] Labelling vertices with name while plotting graph


From: sloiseau
Subject: Re: [igraph] Labelling vertices with name while plotting graph
Date: Wed, 13 Jun 2007 09:31:48 +0200 (CEST)
User-agent: SquirrelMail/1.4.4

> On Tue, Jun 12, 2007 at 11:28:45PM +0200, address@hidden wrote:
>> > ...vertex labels can be controlled by either the "label" attribute
>> > attached to the vertices (and not "name" as written in the webpage you
>> > mentioned - it might be a little bit out of date)
>>
>> PS : when I read a graph using :
>>
>>     m <- read.table("foo.txt");
>>     g1 <- graph.data.frame(m);
>>
>> with m containing a list of edges :
>>
>>     var1     var2    weight
>>     a        rien    2.0
>>     a        ignorant        1.0
>>     a        alphabet        1.0
>>     a        lettre  1.0
>>
>> The constructor create an attribute "name" on vertices. Isn'it
>> inconsistent?
>
> Sylvian, you might call it inconsistent, the 'name' of the vertices is
> not neccessarily the same as their 'label' depending what one means on
> 'name' and 'label'. You can always do V(g1)$label <- V(g1)$name or call
> plot with vertex.label=V(g)$name if you like.

Yes of course; I was wondering if this was voluntary.

> Btw. you might find some more little "irritating" things in igraph
> (this is beta software and constantly under development),
> please report them (if you like). Thanks.

Up to now I have find that it is an outstanding and *very* useful piece of
software... :-)

Thanks!
Sylvain






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