**Statistics and Computation**

1. R Project

Replaces: SAS, SPSS

R is a free and open source statistical computing environment that holds its own against some of the most established proprietary statistical environments. R is available on all operating systems and is free for download. R also has a community driven library of add-on packages that are also freely available and cover almost any statistical, mathematical, or optimization need.

Also a great reference manual for those switching from SAS to R is SAS and R: Data Management, Statistical Analysis, and Graphics

2. RapidMiner

Replaces: KnowledgeSEEKER

RapidMiner is a data mining software with a graphical front-end. RapidMiner is suitable for most data mining and data transformation needs.

**Mathematical Programming and Optimization**

3. GLPK

Replaces: AMPL

GLPK is a GNU/free software linear programming software kit. GLPK is intended for large-scale linear programming, mixed integer programming. GLPK is based on GNU MathProg (or GMPL) which is considered a subset of the AMPL syntax. GLPK also has its own solver.

4. Symphony

Replaces: CPLEX, Gurobi

Symphony is a mixed integer linear programming solver developed under COIN-OR. Symphony is a flexible framework that offers many methods to customize solver capabilities given problem sets.

5. OpenSolver

Replaces: Excel Solver

OpenSolver is a linear an integer optimizer alternative to the Excel Solver in Microsoft Excel. OpenSolver is based on the COIN-OR CBC engine. Unlike the Excel Solver there is no software limits to the size of the problem that can be solved.

## 5 comments:

Good list,

BTW,

You might consider adding ggobi and mondrian (for interactive data visualization....)

Thanks for the reference to our book (SAS and R). We also run a blog with lots of examples of doing stuff in both languages, which might save people the cost of the book: sas-and-r.blogspot.com

Great blog Ken. Definitely use that as reference for R scripts.

Unfortunately, glpk is not a drop-in replacement for AMPL. MathProg can only model linear problems! To my knowledge, Coopr's Pyomo package is the only open source package that handles nonlinear models in the general manner that AMPL does.

See https://software.sandia.gov/trac/coopr .

Don't forget Drools Planner (Java, ASL), Choco, unitime's cpsolver, ...

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