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Re: [igraph] A very elementary question

From: Moses Boudourides
Subject: Re: [igraph] A very elementary question
Date: Sat, 8 Jan 2011 22:22:38 +0100

Thank you, Tamás, but I have to admit that I'm not so advanced in R or
Python to do this myself. So, I would appreciate if you could give me
the functions and the code too. Or at least an example.

As I was telling you I'm importing the data of a weighted directed
graph from Pajek through read.pajek.

Thanks again,


On Sat, Jan 8, 2011 at 10:13 PM, Tamás Nepusz <address@hidden> wrote:
> Hello,
>> I'm a novice in igraph and, thus, I have a rather facile question that
>> I ought to know the answer. Is it possible to plot a weighted directed
>> graph in igraph?
> Yes, it is. Using the R interface, you can either write the weights 
> explicitly on the edges using edge labels or decide to vary the edge width 
> according to the weight. Using the Python interface, you have to represent 
> the edges by varying the edge widths as the Python interface supports no 
> labels yet. Edge widths can be varied by assigning the desired width to the 
> "width" edge attribute. Edge labels in R can be varied by assigning the 
> desired labels to the "label" edge attribute.
>> And how could the nodes be denoted by their labels?
> Simply assign the labels to the "label" vertex attribute and they will be 
> plotted automatically.
> --
> Tamas
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