GAUSS

Developer(s)| Aptech Systems
Initial release| 1984; 42 years ago (1984)
Stable release|

22.1.0 / 10 March 2022; 4 years ago (2022-03-10)

Operating system| Linux, macOS, Windows
Type| programming language
License| proprietary
Website| www.aptech.com

GAUSS is a matrix programming language for mathematics and statistics, developed and marketed by Aptech Systems. Its primary purpose is the solution of numerical problems in statistics, econometrics, time-series, optimization and 2D- and 3D-visualization. It was first published in 1984 for MS-DOS and is available for Linux, macOS and Windows.[1]

## Contents

* 1 Examples
* 2 GAUSS Applications
* 3 See also
* 4 References
* 5 External links

## Examples

* GAUSS has several Application Modules as well as functions in its Run-Time Library (i.e., functions that come with GAUSS without extra cost)
* Qprog – Quadratic programming
* SqpSolvemt – Sequential quadratic programming
* QNewton - Quasi-Newton unconstrained optimization
* EQsolve - Nonlinear equations solver

## GAUSS Applications

A range of toolboxes are available for GAUSS at additional cost.[2]

Toolboxes  Toolbox | Description

|

Algorithmic Derivatives | A program for generating GAUSS procedures for computing algorithmic derivatives.
Constrained Maximum Likelihood MT | 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 crosstabs. This application is backwards compatible with programs written with Descriptive Statistics 3.1.
Descriptive Statistics MT | Basic sample statistics including means, frequencies and crosstabs. This application is thread-safe and takes advantage of structures.
Discrete Choice | A statistical package for estimating discrete choice and other models in which the dependent variable is qualitative in some way.
FANPAC MT | Comprehensive suite of GARCH (Generalized AutoRegressive Conditional Heteroskedastic) models for estimating volatility.
Linear Programming MT | Solves small and large scale linear programming problems.
Linear Regression MT | Least squares estimation.
Loglinear Analysis MT | Analysis of categorical data using log-linear analysis.
Maximum Likelihood MT | Maximum likelihood estimation of the parameters of statistical models.
Nonlinear Equations MT | Solves systems of nonlinear equations having as many equations as unknowns.
Optimization | Unconstrained optimization.
Time Series MT | Exact ML estimation of VARMAX, VARMA, ARIMAX, ARIMA, and ECM models subject to general constraints on the parameters. Panel data estimation. Cointegration and unit root tests.

## See also

* List of numerical-analysis software
* Comparison of numerical-analysis software

## References

1. ↑ "Beginner Program: Nearest Neighbour Search". https://www.aptech.com/resources/tutorials/beginner-program-nearest-neighbor-search/#step-1-create-a-new-gauss-program-file. "GAUSS does not require any particular file extension for GAUSS program files, however, .gss is recommended."
2. ↑ "Explore GAUSS Application Modules | Aptech". https://store.aptech.com/gauss-applications-category.html.

## External links

* International homepage
* GAUSS Mailing List
* Review of version 7.0
* Some more links

* v
* t
* e

Numerical-analysis software

Free|

* Advanced Simulation Library
* ADMB
* Chapel
* Euler
* FEATool Multiphysics
* Fortress
* FreeFem++
* FreeMat
* Genius
* Gmsh
* GNU Octave
* gretl
* Julia
* Maxima
* MFEM
* OpenFOAM
* R
* SageMath
* Salome
* ScicosLab
* Scilab
* X10
* Weka

Proprietary|

* DADiSP
* GAUSS
* LabVIEW
* Maple
* Mathcad
* Mathematica
* MATLAB
* Speakeasy
* VisSim

* List of numerical-analysis software
* Comparison of numerical-analysis software

* v
* t
* e

Statistical software

Public domain|

* Dataplot
* Epi Info
* CSPro
* X-12-ARIMA

Open-source|

* ADMB
* DAP
* gretl
* JASP
* JAGS
* JMulTi
* Julia
* GNU Octave
* OpenBUGS
* Orange
* PSPP
* R (RStudio)
* SageMath
* SimFiT
* SOFA Statistics
* Stan
* XLispStat

Freeware|

* BV4.1
* CumFreq
* SegReg
* XploRe
* WinBUGS

Commercial|

| Cross-platform|

* Data Desk
* GAUSS
* GraphPad InStat
* GraphPad Prism
* IBM SPSS Statistics
* IBM SPSS Modeler
* JMP
* Maple
* Mathcad
* Mathematica
* MATLAB
* OxMetrics
* RATS
* Revolution Analytics
* SAS
* SmartPLS
* Stata
* StatView
* SUDAAN
* S-PLUS
* TSP
* World Programming System (WPS)

|

Windows only|

* BMDP
* EViews
* GenStat
* LIMDEP
* LISREL
* MedCalc
* Microfit
* Minitab
* MLwiN
* NCSS
* SHAZAM
* SigmaStat
* Statistica
* StatsDirect
* StatXact
* SYSTAT
* The Unscrambler
* UNISTAT

Excel add-ons|

* Analyse-it
* SPC XL
* SigmaXL
* UNISTAT for Excel
* XLfit
* RExcel

* Category
* Comparison

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