NAME

       nauty-addptg - add additional vertices in various ways

SYNOPSIS

       addptg [-lq] [-n#] [-j#] [-ck] [-io] [infile [outfile]]

DESCRIPTION

              Add a specified number of new vertices

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

       -l     canonically label outputs

       -c     join each new vertex to all the old vertices

       -k     make a clique on the set of new vertices

       -n# the number of new vertices (default 1)

       -j# join a new vertex to # old vertices in all possible ways

              (-j is incompatible with -n)

       -i     for a digraph, edges go towards the old vertices

       -o     for a digraph, edges go away from the old vertices

              (-i is the default if neither -i nor -o is given)

       -q     Suppress auxiliary information