Description Usage Arguments Value Examples
The function ancestors
returns the ancestors
of a node in a given tree.
1 2 3 4 |
.node |
node or character. The node or node label considered. |
.tree |
A tree. |
include_node |
logical. If |
A (possibly empty) list of nodes.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 | ## Rooted tree
(tr0 = c_("Bob", "Carl", "Daniel"))
(tr1 = c_("Bill", "Caroline", "Dimitri", "Enoc"))
(tr2 = r_("Alice", s = list(tr0, tr1)))
ancestors("Alice", tr2)
ancestors("Daniel", tr2, include_node = TRUE)
## Unrooted tree
(tr3 = r_(s = list(tr2, c_("Grand-Mother", "Father", "Son"))))
ancestors("Alice", tr3)
ancestors("Alice", tr3, include_node = TRUE)
ancestors("Daniel", tr3)
ancestors("Son", tr3)
ancestors("Son", tr3, include_node = TRUE)
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