Re: [igraph] How to rename vertices with contract.vertices() according to names of mapping vector

[Gábor Csárdi]

On Sun, Nov 24, 2013 at 12:20 AM,  <address@hidden> wrote:
>      g2 <- contract.vertices(g, factor(V(g)$category))
>
> still gives
>
>    print(get.data.frame(g2, what="vertices"))
>                name
>
>    c("A", "B") A, B
>    c("1", "2") 1, 2

Yes, 'A' and 'B' are contracted into 'A, B' and '1' and '2' are
contracted into '1, 2'. Isn't this what you wanted?

Gabor

>
>
>
> Il 24.11.2013 05:12 Gábor Csárdi ha scritto:
>>
>> On Sun, Nov 24, 2013 at 12:08 AM,  <address@hidden> wrote:
>>>
>>> Hello list,
>>>
>>> Please consider the following graph with vertices of two categories
>>> ("digit"
>>> and "char"):
>>>
>>>     id <- c("1","2","A","B")
>>>     category <- c("digit","digit","char","char")
>>>     from <- c("1","1","2","A","A","B")
>>>     to <- c("2","A","A","B","1","2")
>>>
>>>     nodes <- cbind(id,category)
>>>     edges <- cbind(from,to)
>>>
>>>     g <- graph.data.frame(edges, directed=TRUE, vertices=nodes)
>>>
>>> Now I want to contract the vertices based on the attribute "category":
>>
>>
>> Try this:
>>
>> g2 <- contract.vertices(g, factor(V(g)$category))
>>
>> Gabor
>>
>> [...]
>>
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