No vertices:
directed: false
vcount: 0
edges: {
}
No edges:
directed: false
vcount: 5
edges: {
}
Prefer old vertices to make a star of triple edges:
directed: true
vcount: 5
edges: {
1 0
1 0
1 0
2 0
2 0
2 0
3 0
3 0
3 0
4 0
4 0
4 0
}
Prefer new vertices to make a line of double edges:
directed: true
vcount: 5
edges: {
1 0
1 0
2 1
2 1
3 2
3 2
4 3
4 3
}
Increasing thickness of the line using outseq:
directed: true
vcount: 5
edges: {
1 0
1 0
2 1
2 1
2 1
3 2
3 2
3 2
3 2
4 3
4 3
4 3
4 3
4 3
}
Prefer more edges to make a star:
directed: true
vcount: 5
edges: {
1 0
1 0
2 0
2 0
3 0
3 0
4 0
4 0
}