Figure 5From: Reliable estimation of prediction errors for QSAR models under model uncertainty using double cross-validationVariability of the error estimates (outer loop, simulation model 2). The variability of the prediction error estimates from the outer loop (ave.vb (PE )) quickly decreases for larger test sets. The variable selection algorithm in the inner loop (Lasso, TS-MR and TS-PCR) and the cross-validation design have a smaller impact.Back to article page