||||
set mean = `awk 'BEGIN {n = 0} {n = n+1; sum = sum+$1} END {if (n != 0) {printf("℅.2fn",sum/n)}}' tmp.enu`
set rms = `awk 'BEGIN {n = 0} {n = n+1; t = $1; sum = sum+t*t} END {if (n != 0) {printf("℅.2fn",sqrt(sum/n))}}' tmp.enu`
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