[graph-tool] Getting all unique values in a vector-valued vertex property map

Alexandre Bovet alexandre.bovet at gmail.com
Fri Feb 10 17:37:58 CET 2017


I agree that the documentation in this case is not easy to understand.

I had a similar situation and get_2d_array([0]) worked.


On Fri, Feb 10, 2017 at 11:26 AM, gogurt <gogurt at gmail.com> wrote:

> This might be a stupid question, but I have a graph with a
> vector<str>-valued
> vertex property map. That is, each vertex has a vector containing one or
> more strings encoding some metadata about the vertex.
> I want to get a single 1d-list/array containing all the unique string
> values
> encoded in this property map, over all vertices in the graph. What's the
> best way to do that?
> I know that I'll have to use the get_2d_array() method on the property map,
> but I can't really understand what the documentation means when it says:
> "The parameter pos must be a sequence of integers which specifies the
> *indexes of the property values which will be used.*"
> --
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> for-the-graph-tool-project.982480.n3.nabble.com/Getting-
> all-unique-values-in-a-vector-valued-vertex-property-map-tp4027016.html
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