Hi Monks,

I have two different hashes. One has three values per key (triplet), the other has two values per key (doublet). Both hashes are comprised of similar entries, e.g. where @A1 and @A2 may have duplicate matches in them.

I am trying to compare both hashes to find key-value-value pairings in the doublet that do not appear in the triplet. I have something like this so far, which checks for the presence of keys in the hash. However, I am not sure how to scale this up to check for all three values in %doublet in the %triplet and then print out any rows that are missing.

I hope that someone can advise!


my %triplet = map {($A1[$_] => [$B1[$_], $C1[$_], $D1[$_]]) } 0..$#tri
+plet;
my %doublet = map {($A2[$_] => [$D2[$_], $C2[$_]])}0..$#doublet;


for (my $i=0; $i<@A2; $i++) {
        if (exists($triplet{$A2[$i]})) {
            print  "$A2[$i]\n";
        } else {
        }
}

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In reply to comparing values in two hashes by Anonymous Monk

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