The systemfit package contains functions for fitting systems of linear and nonlinear simultaneous equations using Ordinary Least Squares (OLS), Seemingly Unrelated Regressions (SUR), Two-Stage Least Squares (2SLS), and Three-Stage Least Squares (3SLS).

• Development Status: 5 - Production/Stable
• License: GNU General Public License (GPL)
• Natural Language: English
• Operating System: OS Independent
• Programming Language: R
• Topic: Further Regression Models, Linear Regression Models

To install packages directly within R type install.packages("packagename",repos="http://R-Forge.R-project.org")