gretl is an easy to use, complex software package designed to help you with the econometric analysis.
The supported formats include: own XML data files; Comma Separated Values; Excel, Gnumeric and Open Document worksheets; Stata .dta files; SPSS .sav files; Eviews workfiles; JMulTi data files; own format binary databases (allowing mixed data frequencies and series lengths), RATS 4 databases and PC-Give databases.
Here are some key features of "gretl":
· Easy intuitive interface (now in French, Italian, Spanish, Polish, German, Basque, Portuguese, Russian, Turkish and Czech as well as English)
· A wide variety of estimators: least squares, maximum likelihood, GMM; single-equation and system methods
· Time series methods: ARMA, GARCH, VARs and VECMs, unit-root and cointegration tests, etc.
· Output models as LaTeX files, in tabular or equation format
· Integrated scripting language: enter commands either via the gui or via script
· Command loop structure for Monte Carlo simulations and iterative estimation procedures
· GUI controller for fine-tuning Gnuplot graphs
