How to extract counts as a vector from a table in R?

Question

I am trying to write a function to extract the frequencies of this table:

 0  1  2  3  4  5  6  7
30 22  9 12  2  5  1 16

So, I want to get c(30, 22, 9, 12, 2, 5, 1, 16).

The table changes every time I run the function, so I need something that can extract information from the table automatically, so I will not write the c () function every time.

Answer 1

Honestly, it could not be easier. If you cannot understand this, you will have many other problems:

> set.seed(42)                          ## be reproducible
> X <- sample(1:5, 50, replace=TRUE)    ## our data
> table(X)                              ## our table
X
 1  2  3  4  5 
 7  6  9 10 18 
> str(table(X))                         ## look at structure of object
 'table' int [1:5(1d)] 7 6 9 10 18
 - attr(*, "dimnames")=List of 1
  ..$ X: chr [1:5] "1" "2" "3" "4" ...
> as.numeric(table(X))                  ## and just convert to vector
[1]  7  6  9 10 18
> 

And for completeness, there are two more ways to get data:

> unname(table(X))                      ## jdropping names reduces to the vector
[1]  7  6  9 10 18
> table(X)[]                            ## or simply access it
[1]  7  6  9 10 18
>