findAncestor: Find the ancestors of specified nodes

Description Usage Arguments Value Author(s) Examples

View source: R/tree_findAncestor.R

Description

findAncestor finds the ancestor in the nth generation above specified nodes.

Usage

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findAncestor(tree, node, level, use.alias = FALSE)

Arguments

tree

A phylo object

node

A vector of node numbers or node labels

level

A vector of numbers to define nth generation before the specified nodes

use.alias

A logical value, TRUE or FALSE. The default is FALSE, and the node label would be used to name the output; otherwise, the alias of node label would be used to name the output. The alias of node label is created by adding a prefix "alias_" to the node number.

Value

A vector of nodes. The numeric value is the node number, and the vector name is the corresponding node label. If a node has no label, it would have NA as name when use.alias = FALSE, and have the alias of node label as name when use.alias = TRUE.

Author(s)

Ruizhu Huang

Examples

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library(ggtree)
data(tinyTree)
ggtree(tinyTree, branch.length = 'none') +
 geom_text2(aes(label = label), color = "darkorange",
           hjust = -0.1, vjust = -0.7) +
 geom_text2(aes(label = node), color = "darkblue",
               hjust = -0.5, vjust = 0.7)

 findAncestor(tree = tinyTree, node = c(18, 13), level = 1)

fionarhuang/TreeSummarizedExperiment documentation built on June 16, 2021, 2:11 p.m.