# nauty-complg man page

nauty-complg ā complement graphs

## Synopsis

## Description

Take the complements of a file of graphs.

The output file has a header if and only if the input file does. The output format is defined by the header or first graph.

**-r**Only complement if the complement has fewer directed edges.

**-R**Only complement if the complement has fewer directed edges or has the same number of directed edges and is canonically less than the original.

**-L**Complement the loops too. By default, preserve them.

**-l**Canonically label outputs.

**-q**Suppress auxiliary information.

## Info

May 2018 nauty 2.6.10 Nauty Manual