| 1 | Ci=Cj |
| 3 | Ci>Cj andRij is tiny |
| 5 | Ci>Cj andRij is small |
| 7 | Ci>Cj and Rij is moderate |
| 9 | Ci>Cj and Rij is big |
| one of 2,4,6,8 | Ci>Cj and Rij is between the adjacent R that mentioned above |
| 1,1/2,…,1/9 | Ci<Cj and Rij is the reciprocal of the R that mentioned above |