induced_tree: Build tree induced by set of node ids.
In cbaumbach/treeFun: Functions for dealing with tree structures

Description Usage Arguments Value See Also Examples

Build tree induced by set of node ids.

1	induced_tree(ids, tree)

`ids`	Character vector of node ids.
`tree`	Tree object.

Returns the subtree of ‘tree’ that is induced by ‘ids’, that is, the tree consisting of the nodes of ‘tree’ with ids in ‘ids’ and all their ancestor nodes.

make_tree

library(treeFun)

d <- 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

tr <- make_tree(d)

itr1 <- induced_tree(c("1","8"), tr)
itr2 <- induced_tree(c("2","5"), tr)

## Not run: 
tree2dot(itr1, "subtree1.dot")
tree2dot(itr2, "subtree2.dot")

## End(Not run)