Research Article
Grey Relational Entropy Calculation and Fractional Prediction of Water and Economy in the Beijing-Tianjin-Hebei Region
Table 11
Entropy of grey relational entropy in Tianjin from 2015 to 2019.
| | | Added value of primary industry | Industrial added value | Added value of construction industry | Added value of tertiary industry | Permanent residents |
| | 2015 | 2.190109 | 1.977309 | 2.107581 | 2.281491 | 2.210438 | | 2016 | 2.397745 | 2.287895 | 2.324098 | 2.260918 | 2.043375 | | 2017 | 2.173411 | 2.212023 | 2.423164 | 2.181772 | 2.274511 | | 2018 | 2.133206 | 2.310803 | 1.980684 | 2.295257 | 2.225365 | | 2019 | 2.21116 | 1.979191 | 2.153381 | 1.880452 | 2.197892 |
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