Calculate the mean deviation

mean-deviation.py

#!/usr/bin/python
import sys

numerator_set = []

for input in sys.stdin.readlines():
    numerator_set.append( float(input) )

numerator = sum( numerator_set ) * 1.0

mean = numerator / len( numerator_set )

distance_set = map( lambda x: abs( x - mean ), numerator_set )

mean_deviation = sum( distance_set ) / len( distance_set )

numerator_set.sort()

print "sum            : %.2f" % ( numerator )
print "count          : %.2f" % ( len(numerator_set) )
print "max            : %.2f" % ( numerator_set[-1] )
print "min            : %.2f" % ( numerator_set[0] )
print "mean           : %.2f" % ( mean )
print "mean deviation : %.2f" % ( mean_deviation )