Thanks a million! And thanks for the quick update fix, I was already trying to find the cause of the error that occurred by "keys @foos" instead of "keys %foos". I changed the print statement (to flip the columns) to 
print("$foos{$_}\t$_\n")

[download]
Cheers, Robert

In reply to Re^2: Stack table columns with hash of arrays by robertkraus
in thread Stack table columns with hash of arrays by robertkraus

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