vectorize an expression
Simon.Gatehouse at csiro.au wrote:
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
a <- b[cbind(1:n, cc[1:n])] Uwe Ligges
Simon Gatehouse
CSIRO Exploration and Mining,
Newbigin Close off Julius Ave
North Ryde, NSW
Mail: PO Box 136, North Ryde
NSW 1670, Australia
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E-mail: simon.gatehouse at csiro.au
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