单位 | 国家电网 | 华北区域 | 东北区域 | 华东区域 | 华中区域 | 西北区域 |
c0 | 0.0055886449 | 0.0028844277 | 0.0006620884 | 0.0033676470 | 0.0159874213 | 0.0027895448 |
c1 | −0.0052087406 | −0.0012241881 | 0.0014592663 | −0.0025198012 | −0.0200557216 | 0.0011145117 |
c2 | 0.0025540527 | 0.0004105461 | −0.0007745098 | 0.0009632380 | 0.0103159511 | −0.0009675861 |
c3 | −0.0006065599 | −0.0000920123 | 0.0001610186 | −0.0001824586 | −0.0024160659 | 0.0002660000 |
c4 | 0.0000676828 | 0.0000104767 | −0.0000151296 | 0.0000167604 | 0.0002598519 | −0.0000326084 |
c5 | −0.0000028563 | −0.0000004525 | 0.0000005311 | −0.0000006047 | −0.0000104535 | 0.0000014766 |
R2 | 0.97 | 0.99 | 0.99 | 0.99 | 0.93 | 0.99 |