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doc ///
Key
tally
(tally, VisibleList)
(tally, String)
Headline
tally the elements of a list, sequence, array, or string
Usage
y = tally x
Inputs
x:{VisibleList,String}
Outputs
y:Tally
Description
Text
It produces a hash table (multiset) @TT "y"@ which tallies the frequencies
of the occurrences of items in the list or string @TT "x"@, i.e.,
@TT "y_i"@ is the number of times @TT "i"@ appears in @TT "x"@, or is
@TT "0"@ if @TT "i"@ doesn't appear in the list or string.
Example
y = tally {1,2,3,a,b,1,2,a,1,2,{a,b},{a,b},a}
y_2
y_5
y_{a,b}
tally "Hello, world!"
SeeAlso
Tally
///
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