Re: [igraph] Ego-centric graphing using weighted edges

[Gábor Csárdi]

Rick,

F-R is fine, all you would need is 1) a weighted implementation, which
we already have in the development branch, as I understand, and 2) the
ability to fix some vertices, in this case ego in the middle. This we
don't have. I have created a bug report for it, you can follow it
here:
https://bugs.launchpad.net/igraph/+bug/734630

Best,
Gabor

On Sun, Mar 13, 2011 at 4:47 AM, Rick Welykochy <address@hidden> wrote:
> Hi all,
>
> I've been playing with the F-R algorithm with weighted edges
> to layout time series data.
>
> The graph nodes are individual time series and the weighted
> edges are the cross correlations between two time series.
>
> F-R does lay the graph out in a pleasing format, but I'm after
> more.
>
> I would like to nominate a node to be the centre of the graph
> and have the layout chose the distance of neighbouring nodes
> to be directly proportional to the strength of the edge
> weight. The more two nodes correlate, the closer together
> they are.
>
> Perhaps F-R is not suited for this task. Any recommendations
> on a layout algorithm (and graph package if not igraph) to
> accomplish this?
>
> tia,
> rick w
>
>
>
> --
> _________________________________
> Rick Welykochy || Praxis Services
>
> For every complex problem, there is a solution that is simple, neat, and
> wrong.
>     -- H.L. Mencken
>
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-- 
Gabor Csardi <address@hidden>     UNIL DGM