# Questions tagged [igraphm]

Questions related to the IGraph/M package for graph theory and network analysis.

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100 views

### How to prevent IGraph/M from printing that annoying startup message?

When I load IGraph/M, it prints an annoying startup message. How can I avoid this?
130 views

### Generating non isomorphic graphs

Is it possible to generate all non isomorphic graphs of given order (small) and size with Mathematica (and IGraph?)? I don’t immediately see how to do that, and if this is not possible without ...
40 views

### Coloring individual edges of a multigraph each with its own color

Could someone tell me how to color two different edges between the same two vertices with a different color? The last time a related question was asked is 4 years ago, so I am wondering if the ...
57 views

### Forced colorings with IGraph/M

Is it possible to force the colors of certain vertices in a graph so that the function which finds a minimum coloring will then extend the partial coloring with the fewest possible number of extra ...
58 views

### Alternatives for chromatic number in graphs

The function IGChromaticNumber in IGraph works great, so well, that I have been able to check the chromatic number of graphs with max degree 12 with over a thousand vertices in a relatively short ...
48 views

### Edge coloring of multigraphs with IGraph/M

Does the current implementation of IGMinimumEdgeColoring and IGChromaticIndex in IGraph/M work with multigraphs? I recall ...
62 views

### Issue with displaying a tree graph after deleting a vertex

Say, I have an expression tree: g = IGExpressionTree[ {{{1,2},{{3,4},{5,6}}},7}, VertexLabels -> "Name"] From that tree I want to delete all the vertices ...
80 views

### Adding edges to a TreeForm of an expression

Say I have an expression {1,{{2,3},4}}. It's TreeForm looks as follows: {1,{{2,3},4}} //TreeForm Now, on each level of that ...
72 views

### Generating all possible subgraphs from an adjacency matrix

I have an adjacency matrix given by am. I want to generate all possible subgraphs with 6 nodes. Here is the code I am using to generate them. But, I am getting some error: ...
94 views

### Graph problem with IGraphM package

Consider the graph: ...
170 views

### IGraph/M Library - ConfigurationModel

I am trying to reproduce a network generated by a configuration model given degree vector truncated power law distribution. I am relying on the following function from the IGraph/M package for ...
67 views

I am trying to load IGraphM on a remote cluster at a university. I can load the program, then install the package, which is successful I then run <<IGraphM, ...
471 views

### Isomorphism of colored multigraphs

Recently I discovered for myself IGraphM package and find it really great! << IGraphM I am still learning its basic functionality. I need to verify ...
154 views

### Demonstrate that graphs with different colors of vertices/edges are not isomorphic

I am asking explicitly about the IGraphM package. I do the following: ...