Resolution:
## Figure 1.
Constructing a demographic function from population values and indicators. The demographic function (solid line) is a piecewise linear function whose X axis
points (time) are a subset of the set of all coalescent times, and whose Y axis values
(population size) are the value of the population parameter (θ) at this point. Time starts at zero (the present) increases as we move further into
the past. The indicator parameter (λ) determines the subset to use for the X axis. In the instance shown above only three
of the six population values are used. λ_{4 }= λ_{5 }= 1, λ_{1 }= λ_{2 }= λ_{3 }= 0.
Heled and Drummond |