[R] count appearence of zero in a vector

[Sarah Goslee]

sum(test == 0)

On Thu, Jan 3, 2013 at 5:49 PM, Hermann Norpois <hnorpois at googlemail.com> wrote:
> Hello,
>
> I wish to count how often zero (0) appears in the vector test.
>
> test
>  [1] 1 1 1 1 1 1 2 1 1 1 0 2 0 1 1 0 0 0 1 1 1 0 1 2 1 1 1 1 1 1
>
>
> I think of something like ...
>
>> sapply (test, function (x) if (x==0 ...
>
> ... but actually I dont know how to carry on.
>
> Could anybody give me a hint?
>
> Thanks Hermann
>

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Sarah Goslee
http://www.functionaldiversity.org