Try:
( scratchpad ) USE: math.statistics
( scratchpad ) { "a" "a" "a" "cc" "cc" "def" } histogram .
H{ { "cc" 2 } { "a" 3 } { "def" 1 } }
2011/1/3 Steve Tsai 蔡福安 <tsa...@familysearch.org>:
> I want to define a word that can count the number of repetition of elements
> in a sorted sequence.
>
> For example
>
> Input: { “a” “a” “a” “cc” “cc” “def” }
>
> Output: { { “a” 3 } { “cc” 2 } { “def” 1 } }
>
>
>
> Can anyone guide me on it?
>
>
>
> Thanks,
>
> Steve Tsai
>
>
>
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