# showNode: Find nodes on the tree In fionarhuang/TreeSummarizedExperiment: TreeSummarizedExperiment: a S4 Class for Data with Tree Structures

## Description

`showNode` is to get nodes from the tree.

## Usage

 `1` ```showNode(tree, only.leaf = FALSE, use.alias = FALSE) ```

## Arguments

 `tree` A phylo object. `only.leaf` A logical value, TRUE or FALSE. The default is FALSE, all nodes are output; otherwise, leaves are output `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`.

Ruizhu Huang

## Examples

 ``` 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17``` ```library(ggtree) data(tinyTree) # PLOT tree 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) ## find the node shared by provided node labels showNode(tree = tinyTree, only.leaf = TRUE, use.alias = FALSE) showNode(tree = tinyTree, only.leaf = FALSE, use.alias = FALSE) ```

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