Absolute error of the median calculated as $$ |\text{observed} - \text{median prediction}| $$ where the median prediction is calculated as the median of the predictive samples.
Examples
observed <- rnorm(30, mean = 1:30)
predicted_values <- matrix(rnorm(30, mean = 1:30))
ae_median_sample(observed, predicted_values)
#> [1] 2.52982645 0.98458168 0.94495454 0.65538891 0.56511146 0.09373061
#> [7] 1.31110818 0.61226219 0.75386115 0.08959962 0.39077113 1.56818369
#> [13] 0.84567980 1.24260044 0.27781917 0.65054779 1.18084954 0.45036469
#> [19] 0.05976767 0.14675942 0.60583332 0.19442459 0.21123533 0.28585022
#> [25] 0.64582375 1.78993469 1.20347916 0.67902801 1.47081575 1.26862726