Fig. 6

Simulations results: relative bias of the class 1 parameter estimations according to the censoring rate τ and to the number of individuals n, low separation setting. Results for mixed model intercept, mixed model slope, Weibull scale and Weibull shape, (β₀₁,β₁₁,ζ₁₁,ζ₂₁, respectively form Eq. (8)) are presented. Same vertical scale is used for the four figures