[R] vectorize an expression

[Simon.Gatehouse@csiro.au]

Dear listers,
I'm having a bad R day.  I just can't think of the vectorized equivalent of:

for (ii in 1:n)   aa[ii]  =  bb[ii,cc[ii]]

Any suggestion received with embarrassment and gratitude

Simon Gatehouse                                  
CSIRO Exploration and Mining,
Newbigin Close off Julius Ave
North Ryde, NSW
 
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