Research Article
A Wave-Spectrum Analysis of Urban Population Density: Entropy, Fractal, and Spatial Localization
Table 4
Autocorrelation function (ACF) and partial autocorrelation function (PACF) values.
| Distribution | Function | Correlogram | Suggestion |
| Exponential distribution | ACF | Tailing: gradual one-sided damping | | PACF | Cutoff at a displacement of 1 | Locality | Power-law distribution | ACF | Tailing: slow one-sided damping | | PACF | Tailing: rapid one-sided damping | Action at a distance | Urban density of Hangzhou city | ACF | Damped oscillation | | PACF | Cutoff at a displacement of 1 | Locality |
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