I think that this would give you the adjacency matrix.

In LightGraphs.jl <https://github.com/JuliaGraphs/LightGraphs.jl>, there is 
a method incidence_matrix that might be useful.


On Tuesday, June 14, 2016 at 8:46:08 AM UTC+2, Ford O. wrote:
>
> Are you sure you know what is incidence matrix? wiki 
> <https://en.wikipedia.org/wiki/Incidence_matrix>
>
> You don't need any dictionaries to implement it. Just use simple Array().
>
> matrix = fill(false, row_size, col_size)
> from_node = scan_input()
> to_node   = scan_input()
> matrix[from_node, to_node] = true
>
>

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