What you have there is exactly (or extremely close to) what I originally coded; however, after considering the OP's "writing these values to excel", I quickly changed that to a Schwartzian Transform.

You're quite correct about not knowing what the OP really wanted. With any of the suggested solutions, questions regarding how an undef is written to a spreadsheet remain outstanding (and this would almost certainly require further coding).

-- Ken

In reply to Re^3: Need to sort and data structure based on values inside arrayrefs. by kcott
in thread Need to sort and data structure based on values inside arrayrefs. by shekarkcb

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