Figure 2.

Powers of the FITR and the FIT in various demographic models. Powers of the FIT (black line) and the FITR with R reference loci (colored lines) are shown as functions of the selection coefficients in the five demographic models. Each point corresponds to the power obtained by 100,000 simulations at the 5% significance level. The duration of sampling time and the number of sampled points were T = 1000 and (L + 1) = 11, respectively. The intervals between any two adjacent sampled points were the same at $\mathrm{\Delta }t=t_i-t_{i-1}=100 (i=1,2,\dots ,L)$. The initial frequency for all R+ 1 loci, $x_{h,0}$, was assumed to be 0.5.