Figure 3. Correlation across distance.
Correlation based on simulations (
replicates) of the statistic 
of the true tree. Pearson's correlation coefficient is measured between 
and 
for pairs of trees at position 
and position 
. Three scenarios are compared: standard neutral model with constant population size (green), population bottleneck (blue) and selective sweep (red). Sample size 
, 
, 
and a recombinaton rate of 
is assumed. The bottleneck parameters are: 
, 
. The selective sweep has a strength of 
. The selected site is at position 
. Under standard neutrality, 
correlation is reached at position 
cM, corresponding to about 
bp.