.\" DO NOT MODIFY THIS FILE!  It was generated by help2man 1.49.3.
.TH NAUTY-NBRHOODG "1" "April 2024" "nauty 2.8.8" "Nauty Manual"
.SH NAME
nauty-nbrhoodg \- extract neighbourhoods of vertices
.SH SYNOPSIS
.B nbrhoodg
[\fI\,-lq\/\fR] [\fI\,-c|-C\/\fR] [\fI\,-d#|d#:#\/\fR] [\fI\,-v#|-v#:#\/\fR] [\fI\,infile \/\fR[\fI\,outfile\/\fR]]
.SH DESCRIPTION
.IP
Extract neighbours of vertices of a graph.
.IP
The output file has a header if and only if the input file does.
No isomorph reduction is done.
.TP
\fB\-l\fR
Canonically label outputs (default is same labelling as input)
.TP
\fB\-C\fR
Extract closed neighbourhoods instead.
.TP
\fB\-c\fR
Extract non\-neighbourhoods instead.
.HP
\fB\-d\fR# \fB\-d\fR#:# Only include vertices with original degree in the given range
.HP
\fB\-v\fR# \fB\-v\fR#:# Only include vertices with these vertex numbers (first is 0).
.IP
No empty graphs are output.
For digraphs, out\-degree and out\-neighbourhoods are used.
.TP
\fB\-q\fR
Suppress auxiliary information