Finding individual fixed effect.I recommend checking the formula references and the user guide for the gretl application because it requires extensive knowledge to be able to work with it... Read more
How can I modify a variable?You need to access the command line reference and function reference for the Gretl package to find out more about this process. However, as far as I know... Read more
Delete a certain column from a matrix.The only thing I have found about this is a discussion on the Mathlab discussion board. I recommend you search there and carefully study... Read more
Gretl is a cross-platform software package for econometric analysis written in the C programming language. It is is free, open-source software. You may redistribute it and/or modify it under the terms of the GNU General Public License (GPL) as published by the Free Software Foundation.
The program has an easy, intuitive interface. There are 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. Limited dependent variables: logit, probit, tobit, interval regression, models for count and duration data, 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. Links to GNU R, GNU Octave and Ox for further data analysis.