4. Graph Components

4.1. igraph_subcomponent — The vertices in the same component as a given vertex.
4.2. igraph_subgraph — Creates a subgraph with the specified vertices.
4.3. igraph_clusters — Calculates the (weakly or strongly) connected components in a graph.
4.4. igraph_is_connected — Decides whether the graph is (weakly or strongly) connected.
4.5. igraph_decompose — Decompose a graph into connected components.
4.6. igraph_biconnected_components — Calculate biconnected components
4.7. igraph_articulation_points — Find the articulation points in a graph.