Gretl (GNU regression, econometrics and time-series library) comprises
libgretl, a shared library which provides various functions relating to
econometric estimation, a command-line client program and a gui client,
using GTK+.

Libgretl is based on the stand-alone command-line econometrics program
ESL, originally written by Ramu Ramanathan of the Department of Economics
at UC-San Diego.
