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Langue: en

Version: 334601 (ubuntu - 24/10/10)

Section: 1 (Commandes utilisateur)


pickg - countg : Count graphs according to their properties.


[pickg|countg] [-fp#:#q -V] [--keys] [-constraints -v] [ifile [ofile]]


countg : Count graphs according to their properties.
pickg : Select graphs according to their properties.
ifile, ofile : Input and output files.
'-' and missing names imply stdin and stdout.
Miscellaneous switches:
-p# -p#:#
Specify range of input lines (first is 1)
With -p, assume input lines of fixed length (only used with a file in graph6 format)
Negate all constraints
List properties of every input matching constraints.
Suppress informative output.
Numerical constraints (shown here with following #) can take a single integer value, or a range like #:#, #:, or :#. Each can also be preceded by '~', which negates it. (For example, -~D2:4 will match any maximum degree which is _not_ 2, 3, or 4.) Constraints are applied to all input graphs, and only those which match all constraints are counted or selected.
number of vertices -e# number of edges
minimum degree -D# maximum degree
regular -b bipartite
radius -Z# diameter
girth (0=acyclic) -Y# total number of cycles
number of triangles
Eulerian (all degrees are even, connectivity not required)
group size -o# orbits -F# fixed points -t vertex-transitive
connectivity (only implemented for 0,1,2).
min common nbrs of adjacent vertices; -I# maximum
min common nbrs of non-adjacent vertices; -J# maximum
Sort keys:
Counts are made for all graphs passing the constraints.
are given separately for each combination of values occuring for the properties listed as sort keys. A sort key is introduced by '--' and uses one of the letters known as constraints. These can be combined: --n --e --r is the same as --ne --r and --ner. The order of sort keys is significant.
De 97 à 99,
Maints Chouans gouailleurs bâfraient chaude andouille et froid boeuf.
-- Bernard, Étienne