[BioC] slow graph methods

[Paul Shannon]

Hi Martin,

Great idea.  I'll try it.

Thanks!

  - Paul

On Sep 26, 2007, at 2:16 PM, Martin Morgan wrote:

> Seth accumulated nodes / edges to
> be added in an environment, which does not get copied (the way a list
> would) each time it is changed. Maybe that perspective helps you to
> revise your code to add nodes in batches, rather than individually?