Table 3 Subjective and objective weighting table
Title 1 | Tertiary factor | AHP | PCA | T=0.5 |
|---|---|---|---|---|
D1 | Elevation | 0.166167 | 0.000000 | 0.083083 |
D2 | River system | 0.048526 | 0.106198 | 0.077362 |
D3 | Slope | 0.104042 | 0.016242 | 0.060142 |
D4 | Number of troops | 0.193802 | 0.099994 | 0.146898 |
D5 | Army provisions | 0.163981 | 0.09666 | 0.13032 |
D6 | Distance from the Great Wall | 0.081508 | 0.020239 | 0.050874 |
D7 | Distance from the relay station | 0.040967 | 0.125695 | 0.083331 |
D8 | Internal accessibility | 0.053146 | 0.105871 | 0.079508 |
D9 | External accessibility | 0.041725 | 0.103899 | 0.072812 |
D10 | County taxes per unit area | 0.016923 | 0.093237 | 0.05508 |
D11 | Historical county kernel density | 0.021582 | 0.101140 | 0.061361 |
D12 | Distance to the capital | 0.044183 | 0.039195 | 0.041689 |
D13 | Influence on Joint defense of the Great Wall | 0.023450 | 0.091630 | 0.057540 |