[R] table() reading problem

[fre]

I have the following problem:

I have some string with numbers like k. I want to have a table like the
function table() gives. However I am not able to call the first row, the 1,
2, 3, 5, 6 or 9. I tried to do that by a data.frame, but that doesn't seem
to work either. The levels keep bothering me.

This is an example of the code:

k<-c(1,1,1,1,1,3,5,6,2,1,3,9,2,3,1,1,1)
> table(k)
k
1 2 3 5 6 9 
9 2 3 1 1 1 
> x<-table(k)
> 
> dim(x)
[1] 6
> 
> x[1] #But i only want the one
1 
9 
> 
> x<-data.frame(x)
> 
> x[1,1] #You are not allowed to use this one for example 3*x[1,1] is
> impossible
[1] 1
Levels: 1 2 3 5 6 9
> 

I hope anyone has an idea of using the table function without this
inconvenience. I thought about writing a counter myself, but that seems
complicated.
Because I have to examine very large examples later on, I don't want to slow
the calculations down if possible.

Thanks for your help in advance.

Frederique

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