# nauty-complg - Man Page

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.

- -a
Also output the input graph (before the complement).

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

- -l
Canonically label outputs.

- -q
Suppress auxiliary information.

## Info

January 2021 nauty 2.7.1 Nauty Manual