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Macaulay2Doc :: Tally - Tally

Tally - Tally -- difference of tallies

Synopsis

Description

The count associated to an item i in the result is the difference of the counts in x and in y if it's positive, otherwise, zero.
i1 : tally {a,a,b,c} - tally {c,d,d}

o1 = Tally{a => 2}
           b => 1

o1 : Tally

See also