Edge weights in assortativity

Hi,

I'm using graph-tool to analyze a network with edge weights that
represent "multiplicity" or "frequency" of the relationship. Most of the
algorithms in graph-tool accept a weight in this sense (where
appliable), but the assortativity (or scalar assortativity) does not. I
think it's possible to use edge weights in the assortativity coefficient
(correct me if I'm wrong), is there any plan to introduce this feature?
I think For what I've seen, I don't think it would be hard to implement,
so I can put a pull request if you find it interesting, although someone
would have to review it as I don't have enough RAM in my machine to
compile graph-tool.

Please open a ticket for this, and it will be implemented when I find some time.

Best,
Tiago