For each node in a tree, the functions list_offspring and list_parents
lists all its offspring and parents, respectively.
list_offspring(x)
list_parents(x)An object of class phylo or aphylo.
List of length n (total number of nodes).
# A simple example with phylo tree ------------------------------------------
set.seed(4)
x <- ape::rtree(10)
list_offspring(x)
#> [[1]]
#> integer(0)
#>
#> [[2]]
#> integer(0)
#>
#> [[3]]
#> integer(0)
#>
#> [[4]]
#> integer(0)
#>
#> [[5]]
#> integer(0)
#>
#> [[6]]
#> integer(0)
#>
#> [[7]]
#> integer(0)
#>
#> [[8]]
#> integer(0)
#>
#> [[9]]
#> integer(0)
#>
#> [[10]]
#> integer(0)
#>
#> [[11]]
#> [1] 12 19
#>
#> [[12]]
#> [1] 13 15
#>
#> [[13]]
#> [1] 1 14
#>
#> [[14]]
#> [1] 2 3
#>
#> [[15]]
#> [1] 16 18
#>
#> [[16]]
#> [1] 4 17
#>
#> [[17]]
#> [1] 5 6
#>
#> [[18]]
#> [1] 7 8
#>
#> [[19]]
#> [1] 9 10
#>