Averaging columns of numbers

awk '{sum1+=$1; sum2+=$2} END {print sum1/NR, sum2/NR}' file.dat
This example calculates the averages of column one and column two of "file.dat". It can be easily modified if other columns are to be averaged.

2
By: kaan
2009-03-24 21:22:14

1 Alternatives + Submit Alt

What Others Think

It is better to use a rolling average to avoid potential overflow. awk '{avg *= (NR - 1) / NR; avg += $1 / NR;} END { print avg; }'
ashawley · 638 weeks and 1 day ago
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