$VAR1 = {
'0000006' => [
                 47,
                 986,
                 {
                   '6' => [
                            undef,
                            8,
                            '0.0476673428',
                            '0.0000000000',
                            '0.0000000000',
                            '0.0504833512',
                            '-2.3718998111e+01',
                            '6.7559883050e-01',
                            '0.0000000000e+00',
                            '0.0000000000e+00'
                          ],
                   '4' => [
                            undef,
                            3,
                            '0.0476673428',
                            '0.0000000000',
                            '0.0000000000',
                            '0.0502136752',
                            '-2.3718998111e+01',
                            '8.6357443606e-01',
                            '0.0000000000e+00',
                            '0.0000000000e+00'
                          ],
                   '1' => [
                            19,
                            439,
                            '0.0476673428',
                            '0.0432801822',
                            '0.0452380952',
                            '0.0539499037',
                            '-1.7611636075e-01',
                            '3.3572455230e-01',
                            '2.3371924011e-01',
                            '4.6743848022e-01'
                          ],
                   '3' => [
                            'NA'
                          ],
                   '2' => [
                            22,
                            286,
                            '0.0476673428',
                            '0.0769230769',
                            '0.0833333333',
                            '0.0370370370',
                            '8.1093021684e-01',
                            '9.9753809371e-01',
                            '9.9388971159e-01',
                            '1.0000000000e+00'
                          ],
                   '5' => [
                            6,
                            249,
                            '0.0476673428',
                            '0.0240963855',
                            '0.0246913580',
                            '0.0589080460',
                            '-8.6952438185e-01',
                            '2.6721209055e-02',
                            '9.8480960134e-03',
                            '1.9696192027e-02'
                          ]
                 }
               ]
 }

##</code><code>##

@arg{key} = (1 .. 6);

foreach my $physh (@{$arg{key}}){
	next if (!$hash{$_}[2]{$physh}[9]);
        ...
}



##</code><code>##

$VAR1 = {
          '' => [
                  undef,
                  undef,
                  {
                    '' => []
                  }
                ],
          'GO:0000006' => [
                            47,
                            986,
                            {
                              '6' => [
                                       undef,
                                       8,
                                       '0.0476673428',
                                       '0.0000000000',
                                       '0.0000000000',
                                       '0.0504833512',
                                       '-2.3718998111e+01',
                                       '6.7559883050e-01',
                                       '0.0000000000e+00',
                                       '0.0000000000e+00'

...

the:

          '' => [
                  undef,
                  undef,
                  {
                    '' => []
                  }
                ],

is something that i don't need- it creates a problem further in the code