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Mathematica > Mathematics and Algorithms > Graphs & Networks > Graph Predicates and Properties > WeightedGraphQ >
Mathematica > Visualization and Graphics > Graphs & Networks > Graph Predicates and Properties > WeightedGraphQ >
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WeightedGraphQ

WeightedGraphQ[g]
yields True if the graph g is a weighted graph and False otherwise.
MORE INFORMATION
  • In cases where a weighted graph is expected, the default vertex and edge weights are taken to be .
  • Weights are often taken to mean cost, capacity, etc.
EXAMPLESCLOSE ALL
Basic Examples   (2)
Test whether a graph is a weighted graph:
Test matrix graphs:
Test whether a graph is a weighted graph:
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Test matrix graphs:
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Click for copyable input
Out[1]=
In[2]:=
Click for copyable input
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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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