[BioC] Rgraphviz: adding weight to an edge

[Jamain, Adrien J]

Hi Li,

It has to do with the sp.between function.
Here is the thread where I reported the bug:
https://stat.ethz.ch/pipermail/bioconductor/2005-November/011066.html

Hope that helps,
Adrien 

> 
> Hi, Adrien,
> 
> Could you be a bit more specific about the problem(s) you 
> encounter in RBGL?
> Some algorithms in RBGL only handle graphs with positive 
> weights, while others could take both positive AND negative 
> weights.  If an algorithm fails to do what it's supposed to 
> do, I'd like to know about it and try to fix it (or document 
> it more clearly).
> 
> Thanks
> 
> Li
> 
> >
> > Dear Kaustubh,
> >
> > Just an idea... I've never used Rgraphviz, but I've had similar 
> > problems in RGBL with graphs which have negative weights (already 
> > reported on the list).
> >
> > Have you checked that the weights you're trying to add are positive?
> >
> > Cheers
> > Adrien
> >
> 
>