Graph with loops and multiple edges, IGRAPH_IN, loops = IGRAPH_NO_LOOPS:
1 3 4 5
2 3 4 5
1 3 4 5
0 4 5
0 1 2 5
0 1 2 3 4
Same graph, IGRAPH_IN, loops = IGRAPH_LOOPS_ONCE:
0 1 3 4 5
2 3 4 5
1 2 3 4 5
0 3 4 5
0 1 2 4 5
0 1 2 3 4 5
Same graph, IGRAPH_IN, loops = IGRAPH_LOOPS_TWICE (ignored because directed):
0 1 3 4 5
2 3 4 5
1 2 3 4 5
0 3 4 5
0 1 2 4 5
0 1 2 3 4 5
Same graph, IGRAPH_OUT, loops = IGRAPH_NO_LOOPS:
3 4 5
0 2 4 5
1 4 5
0 1 2 5
0 1 2 3 5
0 1 2 3 4
Same graph, IGRAPH_OUT, loops = IGRAPH_LOOPS_ONCE:
0 3 4 5
0 2 4 5
1 2 4 5
0 1 2 3 5
0 1 2 3 4 5
0 1 2 3 4 5
Same graph, IGRAPH_OUT, loops = IGRAPH_LOOPS_TWICE (ignored because directed):
0 3 4 5
0 2 4 5
1 2 4 5
0 1 2 3 5
0 1 2 3 4 5
0 1 2 3 4 5
Same graph, IGRAPH_ALL, loops = IGRAPH_NO_LOOPS:
3 4 5
2 4 5
1 4 5
0 5
0 1 2 5
0 1 2 3 4
Same graph, IGRAPH_ALL, loops = IGRAPH_LOOPS_ONCE:
0 3 4 5
2 4 5
1 2 4 5
0 3 5
0 1 2 4 5
0 1 2 3 4 5
Same graph, IGRAPH_ALL, loops = IGRAPH_LOOPS_TWICE:
0 0 3 4 5
2 4 5
1 2 2 4 5
0 3 3 5
0 1 2 4 4 5
0 1 2 3 4 5 5
