I'm sorry, but neither you nor Roy Johnson follow the OP insofar as he would like undefined array elements to be treated like infinity rather than zero, that is, he says he wants 
3,4,23,4,5
3,4,56,2,4
3,4

[download]
instead of 
3,4
3,4,23,4,5
3,4,56,2,4

[download]
Might just have been a typo though, as it's quite unusual.
CombatSquirrel.
Entropy is the tendency of everything going to hell.

In reply to Re^3: sort by a multiple columns by CombatSquirrel
in thread sort by a multiple columns by johnnywang

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