Hi everyone. I've got a DNA sequence that I've transformed into an amino acid sequence using this loop ($dohg is the placeholder for the DNA sequence; I already have a hashtable setup to transform each substring into an amino acid): 
for (my $aa = 0; $aa < length($dohg2); $aa=$aa+3)
{my $sub8 = substr($dohg2, $aa-1, 3);
$lol2=$codon{$sub8};
#print $lol2;
push @array4, $lol2;
}
my $dohg3 = join "", @array4;

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If all the DNA/amino acid stuff is confusing, it's not really important: I basically just want to export the hashtable output of my substring (represented by $lol2) as an array by pushing it into an array. Then, once I exit the loop, I want to join that array into a single variable. However, even if I call "my @array4 = 0;" before the loop begins, I keep getting an error when I try to do any downstream work which reads "Use of uninitialized value within @array in join or string". Any ideas?

In reply to Keep getting "use of unitialized value" error in a weird place by listendohg

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