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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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