ΔRF

0

(0, 1]

(1, 2]

(2, 3]

(3, 4]

(4, 5]

(5, 6]

(6, 7]

(7, 8]

scale

1

2

3

4

5

6

7

8

9

ΔRF

0

[−1, 0)

[−2, −1)

[−3, −2)

[−4, −3)

[−5, −4)

[−6, −5)

[−7, −6)

[−8, −7)

scale

1

1/2

1/3

1/4

1/5

1/6

1/7

1/8

1/9