def correlation(x, y):
if(len(x) == len(y)):
n = len(x)
sum_x = float(Addition.sumList(x))
sum_y = float(Addition.sumList(y))
sum_x_sq = sum(map(lambda x: pow(x, 2), x))
sum_y_sq = sum(map(lambda x: pow(x, 2), y))
psum = sum(imap(lambda x, y: x * y, x, y))
num = psum - (sum_x * sum_y / n)
den = pow((sum_x_sq - pow(sum_x, 2) / n) * (sum_y_sq - pow(sum_y, 2) / n), 0.5)
if den == 0: return 0
return num / den
else:
return -1
def deviation_Calculator(data):
newdata = []
data.sort()
n = len(data)
mean = Mean.Mean_Calculator(data)
for i in data:
newdata.append(Exponentiation.power((i - mean),2))
sum = Addition.sumList(newdata)
return nthRoot.rooting(2,Division.divide(sum,n))
def stardardDev(data):
n = len(data)
mn = Mean.mean(data)
newlist = []
for i in data:
newlist.append(Exponentiation.power(i - mn, 2))
total = Addition.sumList(newlist)
return nthroot.root(2, Division.divide(total, n))
def meanDev(data):
newlist = []
meanOfData = Mean.mean(data)
for i in data:
newlist.append(abs(i - meanOfData))
total = Addition.sumList(newlist)
return Division.divide(total, len(data))
def add(self, a, b):
self.Result = Addition.sum(a, b)
return self.Result
def test_MathOperations_Add(self):
result = Addition.sum(1, 2)
self.assertEquals(3, result)
def test_MathOperations_sum_list(self):
valueList = [1, 2, 3]
self.assertEqual(6, Addition.sum(valueList))
def test_MathOperations_Addition(self):
self.assertEqual(3, Addition.sum(1, 2))
def mean(data):
num_values = len(data)
total = 0
for num in data:
total = Addition.sum(total, num)
return Division.divide(total, num_values)
def Mean_Calculator(data):
num = len(data)
count = Addition.sumList(data)
return Division.divide(count, num)
def test_MO_sum_list(self):
valuelist = [1, 2, 3]
self.assertEqual(6, Addition.sum(valuelist))
def test_MO_add(self):
self.assertEqual(3, Addition.sum(1, 2))
def test_MathOperations_AdditionList(self):
numberlist = [1, 2, 3]
self.assertEqual(6, Addition.sumlist(numberlist))
def mean(data):
num = len(data)
total = Addition.sumList(data)
return Division.divide(total, num)
