Sorry I have updated my example data matrix and the updated my complete code which is causing me problems as I don't know how to update the hash outside the for loop over columns as I want to sum over rows, not columns. Any additional help will be greatly appreciated.

In reply to Re^2: how to sum over rows based on column headings in perl by angerusso
in thread how to sum over rows based on column headings in perl by angerusso

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