# `postorderRec`

Node postorder


## Description

Node postorder


## Usage

```r
postorderRec(edge, mod, idx, leafOrder = NULL)
```


## Arguments

Argument      |Description
------------- |----------------
`edge`     |     The edge matrix of a tree read by ape
`mod`     |     A population model for multi-population use
`idx`     |     The current idx
`leafOrder`     |     If given, this character vector determines how to sort child nodes


## Seealso

[`postorder.arg`](#postorder.arg)


## Note

This is a recursive helper function for postorder.arg