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WeightedGraphQ

WeightedGraphQ

WeightedGraphQ[g]

yields True if the graph g is a weighted graph and False otherwise.

Details

WeightedGraphQ will give True if there is an explicit VertexWeight or EdgeWeight property defined.
In cases where a weighted graph is expected, the default vertex and edge weights are taken to be 1.
Weights are often taken to mean cost, capacity, etc.

Examples

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Basic Examples (2)

Test whether a graph is a weighted graph:

Test matrix graphs:

Scope (4)

Test undirected and directed graphs:

Detect edge weights:

Detect vertex weights:

WeightedGraphQ gives False for anything that is not a weighted graph:

Test large graphs:

Possible Issues (1)

WeightedGraphQ gives False for non-explicit graphs:

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