Table 2 Results of PCA and weight calculation
Indicator | PC1 | PC2 | \({W}_{j}\) |
|---|---|---|---|
λ1 = 4.589, \({V}_{1}\)=65.56% | λ2 = 2.008, \({V}_{2}\)=28.68% | ||
\(C\)=\({V}_{1}+{V}_{2}\)=94.24% | |||
\({L}_{j1}\) | \({L}_{j2}\) | ||
R | 0.177 | 0.981 | 0.138 |
L | 0.977 | 0.024 | 0.166 |
W | − 0.307 | 0.946 | 0.053 |
Nn | 0.943 | − 0.125 | 0.144 |
Ns | 0.971 | − 0.184 | 0.143 |
Na | 0.940 | 0.162 | 0.176 |
K | 0.891 | 0.270 | 0.179 |