Is $var_0 something like 'a', 'b' or 'c' as shown in the example, or is it numerical. If it's not numerical, $theTable[$var_0] won't work too well, but $theTable{$var_0} would work great. In other words, an HoAoA might be what you want, rather than an AoAoA.

You forgot to chomp, so one of your parts has a trailing \n.

my %theTable;

    while (<DATA>) {
        chomp;
        my @line_parts = split /\|/;
        $var_0 = $line_parts[1];
        push(@{$theTable{$var_0}}, [ @line_parts[7, 8, 9] ]);
    }

require Data::Dumper;
print(Data::Dumper::Dumper(\%theTable), $/);

__DATA__
0|a|2|3|4|5|6|var_1|var_2|var_3
0|a|2|3|4|5|6|var_1|var_2|var_3
0|a|2|3|4|5|6|var_1|var_2|var_3
0|b|2|3|4|5|6|var_1|var_2|var_3
0|b|2|3|4|5|6|var_1|var_2|var_3
0|b|2|3|4|5|6|var_1|var_2|var_3
0|c|2|3|4|5|6|var_1|var_2|var_3
0|c|2|3|4|5|6|var_1|var_2|var_3
0|c|2|3|4|5|6|var_1|var_2|var_3

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In reply to Re: Building three-dimensional array using push by ikegami
in thread Building three-dimensional array using push by punch_card_don

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