---
name: "nauty-biplabg"
section: "1"
platform: "linux"
package: "nauty"
version: "2.8.9+ds-1+b1"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/nauty-biplabg"
---

# nauty-biplabg(1)

label bipartite graphs so the colour classes are contiguous

## NAME

nauty-biplabg - label bipartite graphs so the colour classes are contiguous

## SYNOPSIS

**biplabg** \[*-q*\] \[*infile* \[*outfile*\]\]

## DESCRIPTION

-

  Label bipartite graphs so that the colour classes are contiguous.

-

  The first vertex of each component is assigned the first colour. Vertices in each colour class have the same relative order as before. Non-bipartite graphs are rejected.

-

  The output file has a header if and only if the input file does.

- **-q**

  Suppress auxiliary information.