Hello R-helpers,

I have a question about counting numbers.
Here is a simple example.

a=c(2, 3, 3,4)
> table(a)
a
2 3 4
1 2 1

so, I can to create another variables that has the corresponding counting
numbers.
In this case, I want to have:

b=c(1,2,2,1)

Is there any way coding for this ?

Thanks for helps!

Carrie--

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