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

6       nauty-delptg - delete vertices
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SYNOPSIS

9       delptg  [-lq] [-a|-b] [-d#|-d#:#] [-v#|-v#:#] [-r#] [-n#] [-m#|-i] [in‐
10       file [outfile]]
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DESCRIPTION

13              Delete some vertices from a file of graphs.
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15              The output file has a header if and only if the input file does.
16              No isomorph reduction is done.
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18       -l     Canonically label outputs
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20       -d# -d#:# Only remove vertices with original degree in the given range
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22              For digraphs, the out-degree is used.
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24       -n# The number of vertices to delete (default 1).
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26       -v# -v#:# Vertex number or numbers that it is allowed to delete
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28              (first vertex is number 0).
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30       -m# Lower bound on minimum degree of output graphs.
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32       -r# Choose # random sets of points (not necessarily different)
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34       -a     The deleted points must be adjacent.
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36       -b     The deleted points must be non-adjacent.
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38       -i     Leave deleted vertices as isolates, not compatible with -m.
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40              No empty graphs are output. No warning is issued if
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42              -d, -v -n, -m together imply no graphs are output.
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44              For  digraphs,  out-degree  is used for -d and -m.  -q  Suppress
45              auxiliary information
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49nauty 2.8.6                      November 2022                 NAUTY-DELPTG(1)