[R] How to count numbers of a vector and use them as index values?

["Dénes TÓTH"]

See also ?tabulate.

tabulate(x,8)



> Hi Paul,
>
> I would use something like this:
>
>> x <- c(2,2,3,3,4,6)
>> table(x)
> x
> 2 3 4 6
> 2 2 1 1
>> x <- factor(x, levels=1:8)
>> table(x)
> x
> 1 2 3 4 5 6 7 8
> 0 2 2 1 0 1 0 0
>
> Sarah
>
> On Sun, Jul 31, 2011 at 5:41 PM, Paul Menzel
> <paulepanter at users.sourceforge.net> wrote:
>> Dear R folks,
>>
>>
>> I am sorry to ask this simple question, but my search for the right
>> way/command was unsuccessful.
>>
>> I have a vector
>>
>>> x <- c(2, 2, 3, 3, 4, 6)
>>
>> Now the values of x should be considered the index of another vector
>> with possible greater length, say 8, and the value should be how often
>> the indexes appeared in the original vector x.
>>
>>> length(result)
>>  [1] 8
>>> result
>>  [1] 0 2 2 1 0 1 0 0
>>
>>
>> Thank you in advance,
>>
>> Paul
>>
>
>
>
> --
> Sarah Goslee
> http://www.functionaldiversity.org
>
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