These products are available for PC and UNIX versions of GAUSS:

Constrained Maximum Likelihood: Solves the general maximum likelihood problem subject to general constraints on the parameters.

Constrained Optimization: Solves the Nonlinear Programming problem, subject to general constraints on the parameters.

CurveFit: Nonlinear curve fitting.

Descriptive Statistics: Basic sample statistics including means, frequencies and cross tabs.

FANPAC: Comprehensive suite of GARCH (Generalized  Autoregressive Conditional Heteroskedastic) models for estimating volatility.

Linear Programming: Solves small scale linear programming problems.

Linear Regression: Least squares estimation.

Loglinear Analysis: Analysis of categorical data using loglinear analysis.

Maximum Likelihood: Maximum likelihood estimation of the parameters of statistical models.

Nonlinear Equations: Solves systems of nonlinear equations where there are as many equations as unknowns.

Optimization: General optimization.

Quantal Response: Logit, probit, ordered logit, poisson regression, linear hypothesis testing.

Time Series: Time-Series Cross-Sectional Regression Models, Autoregression Models and ARIMA-estimation.