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NAUTY-DELPTG(1) Nauty Manual NAUTY-DELPTG(1)

nauty-delptg - delete vertices

delptg [-lq] [-d#|d#:#] [-n#] [infile [outfile]]

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.
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).

Inputs that are too small are ignored; no empty graphs are output.
Suppress auxiliary information
November 2017 nauty 2.6.10