Your hash is inside out. 

my %locs_by_wind_dir;

for my $loc (keys(%wind_dir)) {
   for my $wind (split /,/, $wind_dir{$loc}) {
      push @{ $locs_by_wind_dir{$wind} }, $loc;
   }
}

print("$_\n") for @{ $locs_by_wind_dir{'AE'} };  # Loc A, Loc B

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In reply to Re: Matching value in hash help! by ikegami
in thread Matching value in hash help! by Anonymous Monk

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