white.py 文件源码

def white2D_functional():
    print("Testing correlation for 2D white noise")
    N = 100
    x1 = randrange(-1000, 1000, 1)
    y1 = randrange(-1000, 1000, 1)
    x2 = x1 + randrange(-1000, 1000, 1)
    y2 = y1 + randrange(-1000, 1000, 1)
    values1 = [[combined(white, x/N, y/N) for x in range(x1, x1 + N)] for y in range(y1, y1 + N)]
    values2 = [[combined(white, x/N, y/N) for x in range(x2, x2 + N)] for y in range(y2, y2 + N)]
    rho = spearmanr(values1, values2, axis = None)
    assert abs(rho[0]) < 0.5
    print("rho = %s" % rho[0])
    print("\tNot signifying correlation found")