Tally
Tally[ list ]
Tally[ list ] returns a list of {key,value} pairs where the keys are the unique elements in list and the values are the occurrence count of this element in the list.
| Example | in | out |
|---|---|---|
The tally of the elements in {b,a,b,c,d,a}. |
Tally[ {b,a,b,c,d,a} ] |
{ { b,2 }, { a, 2 }, { c, 1 }, { d, 1} } |