r - Find the wieght of each element of another vector -

i have vector v , want have vector w weight of each element of v. how can result (vector w)in r? example,

    v = c(0, 0, 1, 1, 1, 3, 4, 4, 4, 4, 5, 5, 6)     u = unique(v)     w = c(2, 3, 1, 4, 2, 1) 

use table:

table(v) v 0 1 3 4 5 6  2 3 1 4 2 1