Calculate median and mean in AWK from a specific column

awk_median_and_mean.sh

#!/bin/bash
#
# Calculate median and mean with AWK from a specific column
#

COL_NUMBER=1 # column number with values to calculate median/mean from 
    
MEAN=$(echo -e "1\n10\n5\n4\n3" | awk -v N=$COL_NUMBER '{ sum += $N } END { if (NR > 0) print sum / NR }')
MEDIAN=$(echo -e "1\n10\n5\n4\n3" | cut -f${COL_NUMBER} | sort -n | awk ' { a[i++]=$1; } END { x=int((i+1)/2); if (x < (i+1)/2) print (a[x-1]+a[x])/2; else print a[x-1]; }')
    
echo $MEAN
#4.6
echo $MEDIAN
#4