Fig. 3From: Exploring the variable importance in random forests under correlations: a general concept applied to donor organ quality in post-transplant survivalThe figure shows the test result for variable KDPI. The observed \(\text {VIMP}_\text {A}\) for KDPI (solid vertical line) exceeds the \(95\%-\)quantile of the estimated density of \(\text {VIMP}_\text {B}(\epsilon _Z)\). The dotted vertical line shows the observed \(\text {VIMP}_\text {B}(\epsilon _Z)\) for KDPIBack to article page