Thanks, that's helpful, but I forgot to mention that my graph is weighted.

In such case, I should create matrix_t with igraph_matrix_init, fill it with my weights, and create a graph using igraph_weighted_adjacency? (Is there any other option?)

Thanks,
Przemek.


On 28/02/2014 00:05, Gábor Csárdi wrote:
There is no easy way, AFAIK. We could have a matrix view, that handles a chunk of memory as a dense matrix, and if the vector of vectors in C++ is a continuous chunk of memory, then there was an easy way.

But right now, just go over the matrix, put the non-zero edges in an igraph_vector_t and call igraph_create().

Gabor


On Thu, Feb 27, 2014 at 5:14 PM, Przemyslaw Grabowicz <[email protected] <mailto:[email protected]>> wrote:

    Dear all,

    I know that igraph is written in C. However, what is the easiest
    way of creating an igraph graph from an adjacency matrix declared
    as a vector of vectors or from a list of links declared as a
    vector in C++?

    Thanks,
    Przemyslaw Grabowicz.


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