Fig. 3. Box plot for r² percentiles as the goodness-of-fit of seven models for all soils. Jaky = Jaky model, SL = simple lognormal model, ORL = offset-renormalized lognormal model, ONL = offset-nonrenormalized lognormal model, SC = Shiozawa and Campbell model, GOM = Gompertz model, and Fred = Fredlund model.