'creates inputs'

def setup_method(self):

    self.data1 = np.array([[1, 3], [1, 2], [1, 1], [2, 1]], 'd')
    self.data2 = np.array([[4, (-2)], [4, (-4)], [4, (-6)], [2, (-6)]], 'd')
    self.data3 = np.array([[2, 4], [2, 3], [2, 2], [3, 2.5]], 'd')
    shiftangle = (np.pi / 8)
    self.data4 = (np.array([[1, 0], [0, 1], [(-1), 0], [0, (-1)]], 'd') / np.sqrt(4))
    self.data5 = (np.array([[np.cos(shiftangle), np.sin(shiftangle)], [np.cos(((np.pi / 2) - shiftangle)), np.sin(((np.pi / 2) - shiftangle))], [(- np.cos(shiftangle)), (- np.sin(shiftangle))], [(- np.cos(((np.pi / 2) - shiftangle))), (- np.sin(((np.pi / 2) - shiftangle)))]], 'd') / np.sqrt(4))
