The purpose of this proc is to make it very easy to replicate results
from an existing data buffer. It extracts and sets all globals from
dbufIN, extracts the variables t, x,
n, Zb, and Zw, and then runs ei().
The original results stored in dbufIN are not used. This
procedure has no globals. Note that ei uses simulation to
approximate various quantities and so you should not expect to
replicate anything to the last decimal point. If you wish replication
to more decimal points, increase _Esims before running
ei() the first time or set Gauss's rndseed.
Gary King
2006-09-13