NAUTY-DELPTG(1) Nauty Manual NAUTY-DELPTG(1)
NAME
nauty-delptg - delete vertices
SYNOPSIS
delptg [-lq] [-a|-b] [-d#|-d#:#] [-v#|-v#:#] [-r#] [-n#] [-m#|-i] [in-
file [outfile]]
DESCRIPTION
Delete some vertices from a file of graphs.
The output file has a header if and only if the input file does.
No isomorph reduction is done.
-l Canonically label outputs
-d# -d#:# Only remove vertices with original degree in the given range
For digraphs, the out-degree is used.
-n# The number of vertices to delete (default 1).
-v# -v#:# Vertex number or numbers that it is allowed to delete
(first vertex is number 0).
-m# Lower bound on minimum degree of output graphs.
-r# Choose # random sets of points (not necessarily different)
-a The deleted points must be adjacent.
-b The deleted points must be non-adjacent.
-i Leave deleted vertices as isolates, not compatible with -m.
No empty graphs are output. No warning is issued if
-d, -v -n, -m together imply no graphs are output.
For digraphs, out-degree is used for -d and -m. -q Suppress
auxiliary information
nauty 2.8.6 January 2023 NAUTY-DELPTG(1)
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