[R] histogram breaks

[casperyc]

===============================
Q2=c(
+ sample(10:19,8,T),
+ sample(20:24,15,T),
+ sample(25:29,25,T),
+ sample(30:39,18,T),
+ sample(40:49,12,T),
+ sample(50:64,7,T),
+ sample(65:89,5,T)
+ )
================================

hist(Q2)

can give me a histogram,

however, how do i get a different 'breaks'?

i want to be break down into the intervals
as my 'sample'?

i.e. the 1st interval is 10:19
           2nd              20:24
          3rd                25:29

as the Q2

Thanks!

casper
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