Figure 3.

Results of the null case study – unscaled permutation importance. Distributions of the unscaled permutation importance measures for the null case, where none of the predictor variables is informative. The plots in the top row display the distributions when the randomForest function is used, the bottom row when the cforest function is used. The left column corresponds to bootstrap sampling with replacement, the right column to subsampling without replacement.

Strobl et al. BMC Bioinformatics 2007 8:25   doi:10.1186/1471-2105-8-25
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