(a) The consensus regression (blue line) for ten bootstrap iterations (gray lines) for data in Figure 1. (b) Ensemble regressions for 10, 25 and 50 bootstrap iterations. (c) The bagged and OOB errors (εB, εOOB) as a function of the number of bootstraps. The curve is fit to ten simulations at each bootstrap level using locally weighted smoothing. The gray band is the fit's 95% confidence interval.