Oops, I meant to start a new thread. Anyway, I wrote: > > Strangely, I don't see any graph constructor from a sparse matrix > > in the C library. Is this correct?
And Tamas responded: > Yes, that's correct. There are many different sparse matrix > representations (i.e., CRS, CCS, zero-based and one-based variants) > and there was no need to support any of them so far. If you need that > and you write a constructor for yourself, you can submit a patch and > we'll be happy to include it.
Thanks. Given any particular format, it's certainly easy enough to pick out the edges from a sparse matrix and then pass the result to igraph_create. Perhaps I could do that after I get a better understanding of igraph as a whole. Poking around your webpage though, I don't see anything about development or patches.