Diagnostics for the Von Bertalanffy model

Rhat

Divergent transitions

Posterior distribution of parameters

Correlation between parameters

Plot random effect

Correlation in plot random effects between species

Changes in plot random effect from past models

Compare plot random effect with last model to check how variance is changing.

Data distribution

Predictions

Longevitity exp(psi)

Accuracy

Using four different metrics:

  • Sensitivity measures the percentage of dead trees that are identified as dead
  • Specificity measures the percentage of alive trees that are correctly identified as alive
  • Accuracy is the ratio of number of correct predictions to the total of predictions
  • Accuracy balanced considers unbalanced accuracy predictions of positive and negative events (sensitivity and specificity)

Proportion of mortality events in the population

Mortality in function of Basal area and climate variables

Not yet…

Out-of-bag cross-validation

OOB proportion of mortality events in the population

Leave-one-out cross-validation to compare models

Sampling time