204111 Boost Camp Grader

boostcamp_day6_myGrader.py

#############################################
#NAME: Sirakorn Lamyai                       
#ID: 5910500023                              
#PROGRAM: myGrader.py                        
#DATE: 28 Jul 2016                           
#############################################

import sys

def grade(score):
	a = 0;
	score = float(score)
	if(score>=85):
		a = 4
	elif(score>=75):
		a = 3
	elif(score>=65):
		a = 2
	else:
		a = 1
	return a

def sumArray(data):
	sum = 0
	for i in data:
		sum += i
	return sum

def stdDev(data):
        mean = sumArray(data)/len(data)
        devScore = 0.0
        for i in data:
                devScore += (i-mean)**2
        return ((devScore/len(data))**0.5)

f = open(sys.argv[1])
lists = f.readlines()

scoreList = []
gradeList = []

for list in lists:
	name,score = list.split()
	scoreList.append(float(score))
	grrrade = grade(score)
	gradeList.append(grrrade)
	print("%s\t%s\t%s")%(name,score,grrrade)

print("               Mean: %.3f")%(sumArray(scoreList)/len(scoreList))
print(" Standard Deviation: %.3f")%(stdDev(scoreList))
print("===========================")
print(" Grade Point Average: %3.2f")%(sumArray(gradeList)/len(gradeList))
print("===========================")