Table 2. Fit of the observed distribution of deleterious mutational effects to several models for random and preobserved mutations
Random
Preobserved
Model Parameters R2 AIC R2 AIC
Exponential 1 0.958 105.047 0.964 106.746
γ 2 0.961 106.866 0.974 110.546
β 2 0.955 109.071 0.977 109.470
Weibull 2 0.962 106.618 0.973 110.527
Log-normal 2 0.974 102.217 0.956 113.200
Exponential + uniform 3 0.968 104.775 0.989 101.083
γ + uniform 4 0.992 92.615 0.996 97.630
β + uniform 4 0.992 94.775 0.996 97.610
Weibull + uniform 4 0.991 92.523 0.993 97.776
Log-normal + uniform 4 0.993 92.382 0.995 98.138
  • See text for details.