Table 6 Correlation of three-level indexes.
Three-level index | Correlation | Quality level | ||||
|---|---|---|---|---|---|---|
\(K_{1} (x_{i} )\) | \(K_{2} (x_{i} )\) | \(K_{3} (x_{i} )\) | \(K_{4} (x_{i} )\) | \(K_{5} (x_{i} )\) | ||
S111 | − 0.0250 | 0.0250 | − 0.9750 | − 1.9750 | − 0.4958 | II |
S112 | − 0.1750 | 0.1750 | − 0.8250 | − 1.8250 | − 0.4708 | II |
S113 | − 2.5125 | − 1.5125 | − 0.5125 | 0.4875 | − 0.0813 | IV |
S114 | − 2.5000 | − 1.5000 | − 0.5000 | 0.5000 | − 0.0833 | IV |
S121 | − 0.7125 | 0.2875 | − 0.2875 | − 1.2875 | − 0.3813 | II |
S122 | − 1.2000 | − 0.2000 | 0.2000 | − 0.8000 | − 0.3000 | III |
S123 | − 3.1000 | − 2.1000 | − 1.1000 | − 0.1000 | 0.0167 | V |
S124 | − 0.2000 | 0.2000 | − 0.8000 | − 1.8000 | − 0.4667 | II |
S131 | − 1.0500 | − 0.0500 | 0.0500 | − 0.9500 | − 0.3250 | III |
S132 | − 3.9250 | − 2.9250 | − 1.9250 | − 0.9250 | 0.1542 | V |
S133 | 0.0125 | − 0.0125 | − 1.0125 | − 2.0125 | − 0.5021 | I |
P211 | − 0.2625 | 0.2625 | − 0.7375 | − 1.7375 | − 0.4563 | II |
P212 | − 0.3875 | 0.3875 | − 0.6125 | − 1.6125 | − 0.4354 | II |
P213 | − 0.3250 | 0.3250 | − 0.6750 | − 1.6750 | − 0.4458 | II |
P214 | − 0.7500 | 0.2500 | − 0.2500 | − 1.2500 | − 0.3750 | II |
P221 | − 0.1500 | 0.1500 | − 0.8500 | − 1.8500 | − 0.4750 | II |
P222 | − 0.7375 | 0.2625 | − 0.2625 | − 1.2625 | − 0.3771 | II |
P223 | − 0.5125 | 0.4875 | − 0.4875 | − 1.4875 | − 0.4146 | II |
P224 | − 1.4125 | − 0.4125 | 0.4125 | − 0.5875 | − 0.2646 | III |
P231 | − 0.5375 | 0.4625 | − 0.4625 | − 1.4625 | − 0.4104 | II |
P232 | − 0.5125 | 0.4875 | − 0.4875 | − 1.1500 | − 0.4146 | II |
P241 | − 1.5250 | − 0.5250 | 0.4750 | 0.1750 | − 0.2458 | III |
P242 | − 0.4000 | 0.4000 | − 0.6000 | 0.1750 | − 0.4333 | II |
O311 | − 0.4875 | 0.4875 | − 0.5125 | − 1.0750 | − 0.4188 | II |
O312 | − 0.8375 | 0.1625 | − 0.1625 | − 0.8250 | − 0.3604 | II |
O321 | − 0.3000 | 0.3000 | − 0.7000 | − 1.9000 | − 0.4500 | II |
O322 | − 0.0250 | 0.0250 | − 0.9750 | − 1.7000 | − 0.4958 | II |