---
name: "mctree-mean-lengths"
section: "1"
platform: "linux"
package: "bali-phy"
version: "4.0-1"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/mctree-mean-lengths"
---

# mctree-mean-lengths(1)

Compute the mean lengths for branches in the given topology.

## NAME

**tree-mean-lengths** - Compute the mean lengths for branches in the given topology.

## SYNOPSIS

**tree-mean-lengths** *tree-file* \< in-file

## DESCRIPTION

Compute the mean lengths for branches in the given topology.

## ALLOWED OPTIONS:

- **-h**, **–help**

  produce help message

- **–tree** *arg*

  tree to re-root

- **-s** *arg* (=0), **–skip** *arg* (=0)

  number of tree samples to skip

- **-u** *arg*, **–until** *arg*

  Read until this number of trees.

- **–prune** *arg*

  Comma-separated taxa to remove

- **-x** *arg* (=1), **–subsample** *arg* (=1)

  factor by which to subsample

- **–var**

  report standard deviation of branch lengths instead of mean

- **–no-node-lengths**

  ignore branches not in the specified topology

- **–safe**

  Don’t die if no trees match the topology

- **–drop-partial**

  Remove partial branches

- **–seed** *arg*

  random seed

- **-V**, **–verbose**

  Output more log messages on stderr.

## REPORTING BUGS:

BAli-Phy online help: ⟨http://www.bali-phy.org/docs.php⟩\\c .

Please send bug reports to ⟨bali-phy-users@googlegroups.com⟩\\c .

## AUTHORS

Benjamin Redelings.