| More docs on the ARB website. See also index of helppages. Last update on 07. Sep 2018 .

Main topics:

- ARB: a Short Introduction
- Glossary
- Add Selected Species and Local Optimization

Related topics:

# Add Marked Species and Local Optimization

- OCCURRENCE
- DESCRIPTION
- NOTES
- EXAMPLES
- WARNINGS
- BUGS

## OCCURRENCE

### ARB_NT/Tree/Parsimony/Tree/Add Marked Species + NNI

## DESCRIPTION

### All 'marked species' (see ´Glossary´) are positioned according to maximum parsimony criteria. Local optimization of the current tree is performed by swapping subtrees which are separated by not more than one edge.

## NOTES

### The current parsimony value (number of base changes needed) is displayed after the 'Current Par' prompt in the upper part of the 'ARB_PARSIMONY' window and the 'Message' window (pops up while calculating).

## EXAMPLES

### None

## WARNINGS

### No global optimization is performed

## BUGS

### No bugs known