get.AIC retrieves Akaike information criteria from a fitted hydroState model object or all models.
Details
get.AIC
The AIC is the negative log-likelihood of the model plus a penalty for model parameters. This function can be performed on a single model or a selection of models to find the lowest AIC of the set.
Examples
# Load fitted model
data(model.annual.fitted.221201)
## AIC of a single model
get.AIC(model.annual.fitted.221201)
#> [1] 89.81635
## Lowest AIC of a model set
get.AIC(all.models.annual.fitted.407211)
#> ... The following model has a state with only 1 time points: model.3State.normal.boxcox.AR2.a0std
#> ... The following model has a state with only 1 time points: model.3State.normal.boxcox.AR3.a0std
#> AIC nParameters AIC.weights
#> model.2State.gamma.boxcox.AR2.a0std 72.29543 10 4.539442e-01
#> model.2State.gamma.boxcox.AR3.a0std 72.73455 11 3.644593e-01
#> model.2State.gamma.boxcox.AR0.a0std 74.86469 8 1.256306e-01
#> model.2State.gamma.boxcox.AR1.a0std 76.77487 9 4.833987e-02
#> model.3State.gamma.boxcox.AR0.a0std 81.88396 15 3.757337e-03
#> model.3State.gamma.boxcox.AR1.a0std 83.87980 16 1.385125e-03
#> model.3State.gamma.boxcox.AR3.a0std 84.09137 18 1.246082e-03
#> model.3State.gamma.boxcox.AR2.a0std 84.84782 17 8.536605e-04
#> model.1State.gamma.boxcox.AR2.a0std 87.34379 5 2.450717e-04
#> model.1State.gamma.boxcox.AR3.a0std 89.29440 6 9.241094e-05
#> model.1State.gamma.boxcox.AR1.a0std 91.00718 4 3.924624e-05
#> model.2State.truc.normal.boxcox.AR0.a0std 96.02439 8 3.193921e-06
#> model.2State.truc.normal.boxcox.AR1.a0std 97.98971 9 1.195530e-06
#> model.2State.truc.normal.boxcox.AR2.a0std 98.54317 10 9.065239e-07
#> model.3State.truc.normal.boxcox.AR0.a0std 99.70401 15 5.073483e-07
#> model.2State.truc.normal.boxcox.AR3.a0std 100.34890 11 3.675108e-07
#> model.3State.truc.normal.boxcox.AR2.a0std 100.93170 17 2.746092e-07
#> model.3State.truc.normal.boxcox.AR1.a0std 101.44630 16 2.123109e-07
#> model.2State.normal.boxcox.AR0.a0std 102.08864 8 1.539893e-07
#> model.3State.truc.normal.boxcox.AR3.a0std 102.92497 18 1.013636e-07
#> model.1State.gamma.boxcox.AR0.a0std 103.31423 3 8.343658e-08
#> model.1State.truc.normal.boxcox.AR2.a0std 103.67500 5 6.966526e-08
#> model.2State.normal.boxcox.AR1.a0std 104.03954 9 5.805746e-08
#> model.1State.truc.normal.boxcox.AR3.a0std 104.98191 6 3.624304e-08
#> model.2State.normal.boxcox.AR3.a0std 105.64588 11 2.600426e-08
#> model.2State.normal.boxcox.AR2.a0std 105.84569 10 2.353182e-08
#> model.1State.truc.normal.boxcox.AR1.a0std 108.54189 4 6.112006e-09
#> model.1State.normal.boxcox.AR2.a0std 109.52988 5 3.729460e-09
#> model.1State.normal.boxcox.AR3.a0std 110.93876 6 1.843788e-09
#> model.1State.truc.normal.boxcox.AR0.a0std 112.14714 3 1.007662e-09
#> model.1State.normal.boxcox.AR1.a0std 112.76325 4 7.405059e-10
#> model.3State.normal.boxcox.AR0.a0std 113.33030 15 5.576917e-10
#> model.3State.normal.boxcox.AR1.a0std 115.42311 16 1.958600e-10
#> model.1State.normal.boxcox.AR0.a0std 115.55754 3 1.831282e-10