DIY rounding function is given here; In unbiased rounding, .5 rounds to even, rather than always up, so 1.5 rounds to 2 but 4.5 rounds to 4 https://www.gnu.or

DIY rounding function is given here; In unbiased rounding, .5 rounds to even, rather than always up, so 1.5 rounds to 2 but 4.5 rounds to 4 https://www.gnu.org/software/gawk/manual/html_node/Round-Function.html https://www.gnu.org/software/gawk/manual/html_node/Round-Fun...