Table 6. Model fit and comparison criteria.
Model | pD | DIC | LS | |
---|---|---|---|---|
Partial spatio–temporal model | ||||
Model– 1: Non–parametric terms (γj, ψij) | 4654.21 | 358.31 | 5012.52 | 0.31, 0.57 |
Model– 2: Parametric terms (βj, ψij) | 4012.34 | 302.11 | 4314.45 | 0.28, 0.51 |
Covariate model | ||||
Model– 3: Model– 2 + β1,…, β5. | 4723.59 | 402.61 | 5126.20 | 0.32, 0.59 |
Model– 4: Model– 2 + β1,…, β4. | 3951.27 | 247.64 | 4198.91 | 0.25, 0.48 |
Model– 5: Model– 2 + β1,…, β3. | 3429.73 | 236.18 | 3665.91 | 0.21, 0.43 |
is the expected deviance, pD is the deviance derived from the expected values of parameters, DIC is the deviance information criterion, and LS is the logarithmic score.
β1 = poverty–status, β2 = daytime LST, β3 = relative humidity, β4 = number of houses built in 2005 or before, β5 = percent developed—medium intensity area. The removal of β2, then β1 one at a time resulted in model DIC values of 3984.24 and 3746.65, respectively, and were therefore retained in the Bayesian covariate model.