addLabel: add labels to nodes of a tree

In fionarhuang/TreeSummarizedExperiment: TreeSummarizedExperiment: a S4 Class for Data with Tree Structures

add labels to nodes of a tree

Description

addLabel label nodes of a tree (phylo object)

Usage

addLabel(tree, label = NULL, on = c("all", "leaf", "internal"))

Arguments

tree	A phylo object
label	A character vector to provide node labels. The label is passed to nodes that are sorted by their node number in ascending order. The default is NULL, nodes are labeled by adding a prefix Node_ to their node number.
on	Chosen from "all", "leaf", "internal". If "all", all nodes are labeled; if "leaf", leaves are labeled; if "internal", internal nodes are labeled.

Value

a phylo object

Author(s)

Ruizhu Huang

Examples

 
data(tinyTree)
library(ggtree)

# PLOT tree
# The node labels are in orange texts and the node numbers are in blue
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)

# change labels
nodes <- showNode(tree = tinyTree, only.leaf = FALSE)
tt <- addLabel(tree = tinyTree, label = LETTERS[nodes],
               on = "all")

ggtree(tt, 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)

fionarhuang/TreeSummarizedExperiment documentation built on June 11, 2025, 9:42 a.m.