[R] Counting the number of integers at one swoop

[R. Michael Weylandt]

Table() or more generally tabulate()

Though, as a general warning, you may need to be a little careful
depending on the source of your data. Once you get into floating point
business, the definition of an integer becomes a little less cut and
dry. If your data are all integer, the data type, then there's nothing
to worry about.

Michael

On Thu, Oct 13, 2011 at 7:33 AM, Kathie <kathryn.lord2000 at gmail.com> wrote:
> Dear R users,
>
> I'd like to count the number of integers in a vector y.
>
> Here is an example.
>
> y <- c(0,1,1,3,3,3,5,5,6)
>
> In fact, I know how to count the number of specific number in y.
>
> sum(y==0) -> 1
> sum(y==1) -> 2
> sum(y==2) -> 0
> sum(y==3) -> 3
> sum(y==4) -> 0
> sum(y==5) -> 2
> sum(y==6) -> 1
>
>
> However, in one computation I want to get this vector [1,2,0,3,0,2,1].
>
> Thank you in advance.
>
> Kathie
>
>
>
> --
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>
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