tree_equal: Test if two trees have the same edges
In cbaumbach/treeFun: Functions for dealing with tree structures

Description Usage Arguments Value See Also Examples

Two trees are equal if they have the same edges. This means that two trees that differ in some respect other than their edges will nonetheless be considered equal.

1	tree_equal(tree1, tree2)

`tree1`	Tree object.
`tree2`	Tree object.

Returns TRUE if ‘tree1’ and ‘tree2’ have the same edges.

make_tree

library(treeFun)

d1 <- read.table(textConnection("\
id parents label
0 - a
1 0 b
2 0 c
3 1 d
4 1 e
5 1 f
6 2 g
7 2 h
8 7 i
"), header = TRUE, stringsAsFactors = FALSE)

##         0a
##        / \
##      /     \
##    1b       2c
##   /|\      / \
##  / | \    /   \
## 3d 4e 5f 6g    7h
##                 \
##                  \
##                   8i

d2 <- d1
d2$label <- toupper(d1$label)
d2 <- d2[sample.int(nrow(d2)),]

## d2 has the same structure as d1 but its labels are in uppercase and
## its rows are permuted.

tree_equal(make_tree(d1), make_tree(d2))