Mean absolute error between predictions and the observed response on the test set. Returns NA when no test set is present (no training-set fallback).
Constructor for MaeMetric.
Examples
pred_mae_metric()
#> <bayesim::MaeMetric>
#> @ name : chr "mae"
#> @ needs : chr "predictions"
#> @ required : logi FALSE
#> @ summary_type: chr "mean"
#> @ schema :List of 2
#> .. $ value:List of 3
#> .. ..$ role : chr "estimate"
#> .. ..$ aggregation: chr "mean"
#> .. ..$ mcse : chr "sd"
#> .. $ n_obs:List of 3
#> .. ..$ role : chr "count"
#> .. ..$ aggregation: chr "none"
#> .. ..$ mcse : chr "none"