Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
A—discovery, B—equal spacing. While the number of discovery populations was varied from 4 to 40 by increments of one, the Boxplots are only shown for a subset of the number of discovery populations to avoid a crowded figure. The smoothing lines, which show the trend, are calculated from all observations. Plots for all five steps can be found in S9 Fig.
