make_tree(n, children = 2, mode = c("out", "in", "undirected"))

tree(...)

Arguments

n

Number of vertices.

children

Integer scalar, the number of children of a vertex
(except for leafs)

mode

Defines the direction of the
edges. out indicates that the edges point from the parent to
the children, in indicates that they point from the children
to their parents, while undirected creates an undirected
graph.