Research Article
A Three-Parameter S-Shaped Function of Flood Return Period and Damage
Table 4
Function fitting results in 2005.
| Function | Parameter | Value | Standard error | Adj. -squared |
| Gompertz | (100 million) | 448.20 | 17.19 | 0.99 | (year) | 118.46 | 11.076 | | 0.0088 | 0.0011 |
| Logistics | (100 million) | 441.53 | 21.90 | 0.97 | (year) | 164.58 | 16.91 | | 0.015 | 0.0025 |
| Hyperbolic tangent | (100 million) | 441.56 | 21.90 | 0.97 | (year) | 164.63 | 16.91 | | 0.0074 | 0.0013 |
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