01-31-2011
x is a array and it's initialized to 0.the index of x is $0,if $0 is first time meet,then plus 1 to the value of x[$0],x[$0] now is 1.As ++ here is "suffix ++",0 is returned and then be added.So !x[$0] is true,the $0 is printed by default.if $0 appears more than once,! x[$0] will be false so won't print $0.
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LEARN ABOUT DEBIAN
clmmeet
clm meet(1) USER COMMANDS clm meet(1)
NAME
clm meet - compute the intersection of a set of clusterings.
clmmeet is not in actual fact a program. This manual page documents the behaviour and options of the clm program when invoked in mode meet.
The options -h, --apropos, --version, -set, --nop are accessible in all clm modes. They are described in the clm manual page.
SYNOPSIS
clm meet [-o fname (output file name)] [-h (print synopsis, exit)] [--apropos (print synopsis, exit)] [--version (print version, exit)]
<file name>+
DESCRIPTION
clm meet computes the intersection of a set of clusterings, that is, the largest clustering that is a subclustering of all the clusterings
in the set. It stores the intersection (or meet) in the argument to the -o flag, which must be the first option given. All remaining argu-
ments are interpreted as names of files containing clusterings in mcl format (see mcxio(5)), which must all pertain to a set of the same
cardinality.
This utility can be useful in measuring (in conjunction with clm dist) the consistency of a set of clusterings at different levels of granu-
larity - if the meet of all those clusterings is close to being a subclustering of each of them, consistency is good. See clm dist for an
example.
OPTIONS
-o fname (output file name)
AUTHOR
Stijn van Dongen.
SEE ALSO
mclfamily(7) for an overview of all the documentation and the utilities in the mcl family.
clm meet 12-068 8 Mar 2012 clm meet(1)