Not sure if it's simpler than your way of doing it, but I think something like this would work: 
my $HoH = {};
foreach my $array (@AoA) {
  $HoH->{ $array->[0] }->{ $array[1] }->{ $array->[2] } = 1;
}

[download]
But I haven't tested it, so YMMV.

--starX
www.axisoftime.com

In reply to Re: How to transform a matrix into a hash?? by starX
in thread How to transform a matrix into a hash?? by yocoim

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