Research Article
Operational Efficiency Evaluation of Iron Ore Logistics at the Ports of Bohai Bay in China: Based on the PCA-DEA Model
Table 6
Characteristic vectors of the input and output indicators (column vector).
| Indicator | Characteristic vector of the input indicators |
Indicator | Characteristic vector of the output indicator | 1 | 2 | 3 | 4 | 1 | 2 |
| | −0.355 | 0.204 | 0.165 | 0.022 | | 0.593 | 0.063 | | −0.167 | 0.357 | −0.188 | 0.304 | | 0.039 | 0.789 | | 0.372 | −0.299 | 0.146 | −0.062 | | 0.626 | 0.314 | | 0.431 | 0.239 | −0.222 | −0.053 | | 0.505 | −0.524 | | 0.055 | 0.390 | −0.474 | 0.219 | | | | | 0.385 | 0.191 | 0.273 | −0.414 | | | | | 0.306 | 0.405 | −0.172 | −0.053 | | | | | −0.031 | 0.445 | 0.401 | −0.142 | | | | | −0.141 | 0.365 | 0.453 | −0.048 | | | | | 0.481 | −0.021 | 0.115 | 0.285 | | | | | 0.158 | −0.022 | 0.400 | 0.758 | | | |
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