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.
Empirical progeny distribution and maximum-likelihood neutral progeny distribution generated by (a,d) the full dataset as in figure 5; (b,e) imposing a threshold such that only names with five or more appearances are considered; (c,f) by imposing a year-by-year threshold, such that only names with five or more appearances in a given year are considered in that year. (a,b,c) boys' names, (d,e,f) girls' names. ML, maximum likelihood.
