Figure 2

Cumulative distribution functions (CDFs) of log delta-distance computed from windows of three sizes on the Haemophilus influenzae genome. The CDF gives the fraction of windows in which log delta-distance did not exceed the abscissa. The empirical CDFs are drawn with connected line segments and they increase in smoothness with the total number of windows. The discrete points (squares) trace the CDFs of corresponding normal distributions having the same mean and variance as the three sets of observations.