r - Grabbing edges of factor after cut function -

when cut 1 vector vector, lot of factors this: (0,100], (100,200], etc. there way 1 of these factors , take upper or lower bound?

ex: (100,200] want way grab 100 , 200.

edit:

> v <- cut(c(3,4,6,8), c(1,4,5,9,12))   > v   [1] (1,4] (1,4] (5,9] (5,9]     levels: (1,4] (4,5] (5,9] (9,12]     > v[1]     [1] (1,4]     levels: (1,4] (4,5] (5,9] (9,12] 

i want way, when given v[1], numbers 1 , 4.

strsplit(gsub("\\[|\\]|\\(", "", as.character(v[1]) ) , ",")[[1]]  #[1] "1" "4"