Figure 11.

(A) Log plot of $P(x,\tau |x_0=0.01)$ at generations $t=700,1100,1500,1900$ computed from the discrete-time model. $N={10}^7$ and $\alpha =1.5$. (B) Log–log plot of ${\tau }^{2\eta }P(x,\tau |x_0=0.01)$ versus $\xi =x/{\tau }^{2\eta }$, where $\eta ={(\alpha -1)}^{-1}$, at $t=700,1100,1500,1900$ (solid curves). The dashed curve represents the analytic result of $g(\xi )$ (see Appendix F). The curves ${\tau }^{2\eta }P(x,\tau |x_0=0.01)$ at the different time points collapse into $g(\xi )$, supporting the scaling ansatz in Equation 37.