def Reverse(array):
array.reverse()
for ar in array:
ar.reverse()
return array
def Reverse(array):
array.reverse()
for ar in array:
ar.reverse()
return array
def test_mixed_dot_product(self):
dim = 10
sv = [(1, 0.4), (3, -0.1), (6, 0.8), (9, 0)]
dv = array('b', [1, 1, 1, 1, 1, -1, -1, -1, -1, -1])
dp1 = sketchy.mixed_dot_product(sv, dv)
# 0.4 * 1 + -0.1 * 1 + 0.8 * -1 + 0 * -1
self.assertEqual(-0.5, dp1)
array.reverse(dv)
dp2 = sketchy.mixed_dot_product(sv, dv)
# 0.4 * -1 + -0.1 * -1 + 0.8 * 1 + 0 * 1
self.assertEqual(0.5, dp2)
def test_mixed_dot_product(self):
dim = 10
sv = [(1, 0.4), (3, -0.1), (6, 0.8), (9, 0)]
dv = array('b', [1, 1, 1, 1, 1, -1, -1, -1, -1, -1])
dp1 = sketchy.mixed_dot_product(sv, dv)
# 0.4 * 1 + -0.1 * 1 + 0.8 * -1 + 0 * -1
self.assertEqual(-0.5, dp1)
array.reverse(dv)
dp2 = sketchy.mixed_dot_product(sv, dv)
# 0.4 * -1 + -0.1 * -1 + 0.8 * 1 + 0 * 1
self.assertEqual(0.5, dp2)
from array import array
a = array('H', [4000, 10, 700, 22222
]) #from the module "array", array() function is called
print a
print sum(a) #26932
print "------------------------------------"
print dir(array)
print "------------------------------------"
array.reverse(a)
print a
'''
The array module provides an array() object that is like a list that
stores only homogeneous data and stores it more compactly.
'''
#print a[1:3]
#array('H', [10, 700])
else:
print("fulfilled stack")
# Queue -> First In - First Out
queue = deque([])
queue.append(1)
queue.append(2)
queue.popleft() # Removes FIRST
# Array
array = array("i", [1, 2, 3])
array.reverse() # Doesn't return the reversed, it reverses the array directly
# Sets -> Unique values - Are objects
uniques = set([1, 2, 3, 4, 4, 5])
uniques.add(5)
# Combining UNIQUE sets
secondUniques = {1, 5, 7}
# Returns new set with all the values that exists in each set
print(uniques | secondUniques)
# Returns new set with only the values that exists in both sets
print(uniques & secondUniques)
# Returns new set with the values that exists in the left set but not in the right set
print(uniques - secondUniques)
# Returns the values that are either on the left o right set but NOT IN BOTH