Table 2. Watanabe-Akaike information criterion [37, 38] comparisons for the distribution of step-size.

Standard and truncated folded-normal, log-normal, and Pareto distributions were considered. The truncated log-normal distribution, with parameters: μ = 0.64 (CI95: 0.60, 0.68), σ = 1.39 (CI95: 1.36, 1.42), and τ = 18.73 (CI95: 18.70, 18.83), outperforms other models in the set. Note here that the μ and σ parameters of the log-normal distribution define, respectively, the mean and standard deviation of the variable’s natural logarithm; the τ parameter defines the variable’s upper truncation point.

	WAIC	Δ-WAIC	Weight
Truncated Log Normal	28186.80	0.00	1.00
Truncated Folded Normal	28237.10	50.40	0.00
Folded Normal	28246.00	59.20	0.00
Log Normal	28652.10	465.40	0.00
Truncated Pareto	36944.60	8757.80	0.00
Pareto	46423.40	18236.60	0.00