ruby-igraph

Ruby bindings for the igraph library - a collection of network analysis tools.

Installation

Install the igraph C library first:

# macOS
brew install igraph

# Ubuntu/Debian
sudo apt-get install libigraph-dev

# Other systems: see https://igraph.org/c/doc/igraph-Installation.html

Then install the gem:

gem install ruby-igraph

Usage

require 'igraph'

# Create a simple graph
graph = IGraph::LibIGraph::Graph.new
IGraph::LibIGraph.igraph_empty(graph.pointer, 3, false)

# Add edges
edges = IGraph::LibIGraph::VectorIntStruct.new
IGraph::LibIGraph.igraph_vector_int_init(edges.pointer, 4)
IGraph::LibIGraph.igraph_vector_int_set(edges.pointer, 0, 0)
IGraph::LibIGraph.igraph_vector_int_set(edges.pointer, 1, 1)
IGraph::LibIGraph.igraph_vector_int_set(edges.pointer, 2, 1)
IGraph::LibIGraph.igraph_vector_int_set(edges.pointer, 3, 2)

IGraph::LibIGraph.igraph_create(graph.pointer, edges.pointer, 3, false)

# Get basic properties
vcount = IGraph::LibIGraph.igraph_vcount(graph.pointer)  # => 3
ecount = IGraph::LibIGraph.igraph_ecount(graph.pointer)  # => 2

# Clean up
IGraph::LibIGraph.igraph_vector_int_destroy(edges.pointer)
IGraph::LibIGraph.igraph_destroy(graph.pointer)

Development

git clone https://github.com/kojix2/ruby-igraph
cd ruby-igraph
bundle install
rake test

Contributing

Bug reports and pull requests are welcome on GitHub.

License

This project was built with love using the vibe coding method.

MIT License.