summary of finding elements in an array

[Carlisle Thacker <thacker@aoml.noaa.gov>]

Thanks to Nick Ellis, Deric Hetzel,  Luciano Molinari, Hong Ooi,
Alan Zaslavsky, and Bert Gunter.

What I was looking for was an array of indices:
test[cbind(test.i,test.j)]

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* William Carlisle Thacker                             *
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