Re^3: Extracting DNC issues

[chromatic]

I'm trying to do if the number doesn't exist in combined numbers then it should be dnc

I understand that, but $dnc retains the previous value you assigned every time through the loop, so I wonder if that's what you intended. If you move the declaration and assignment into the loop, $dnc will be an empty string unless the current number doesn't exist in combined numbers.

I don't know if that's what you want though.

[MoodyDreams999]

Yes, so that was probably the issue I was having. DNC isnt a column until we create it, so it should be an empty string unless the current number doesn't exist in combined numbers. Isn't it in the while loop though, the ending bracket for while loop is after that statement

[chromatic]

Isn't it in the while loop though

Not in the code you posted:

my $dnc_col = '';

while (my $row = $csv->getline($input))

Unless I misunderstand your intention, I think you should swap the order of these two lines.