Data Desk is a user friendly statistical package with special facilities for exploration and visualization. Check the Data Desk web site - www.datadesk.com - for trial copies and more information about Data Desk.

Many people use the functionality provided in Excel's Analysis Toolpak for basic statistical analysis. If you are going to continue with more advanced statistics, you will need to purchase a statistical add-in for Excel, suited to your needs. Several statistics.com courses in resampling and data mining use Excel add-ins.

IBM SPSS Statistics Student Software Available Online through several web sites. Please click here for options. A free IBM SPSS Statistics trial version (lasts for about 21 days) is available from SPSS, but will not last the duration of any statistics.com course. If you are a student enrolled in a university, you may obtain a student version of IBM SPSS Statistics from SPSS.

JMP is an easy-to-use data analysis and graphics tool from SAS. JMP provides a broad collection of statistics and graphics tools, from basic statistics to DOE to Data Mining and is available for Windows, Macintosh and Linux operating systems. JMP also integrates with SAS providing an intuitive interface to SAS' extensive library and enterprise data. You can download a 30-day evaluation copy of JMP here. This software will be supported by our teaching assistants beginning in the second quarter of 2007.

A free 30 day trial version of this software (version 15) is available to students enrolled in certain courses at statistics.com. MINITAB is a general statistical and graphical analysis package. It can do various general analyses including time series. To download the 30 day trial version of Minitab 15, click here and carefully follow the on screen instructions. For more information about MINITAB, visit the MINITAB website:
www.minitab.com . This software is supported by our teaching assistants.

This software is free and can be obtained from the R Project website. It does basic statistics, resampling, regression, logistic regression, GLM and GEE (this list includes available user-written routines). To obtain a free copy or to receive more information about R visit the R Project website:
www.r-project.org

The SAS Learning Edition is an inexpensive version of SAS with an impressive array of features from SAS Base, SAS/STAT, SAS/GRAPH, SAS/QC, SAS/ETS and SAS Enterprise Guide. Some of the included PROCS are MIXED, GENMOD, ARIMA, GLM, REG, LOGISTIC, and PHREG. See the SAS website for more information. SAS/LE will read datasets of any size, but will only process the first 1,500 observations. There is no limitation on the number of variables. The SAS learning edition is supported by SAS only for Windows XP, but can be run under Vista and Windows 7 - see this non-SAS forum link for more information. As of September 2010, SAS/LE is available from Amazon.com, but not directly from SAS.

Insightful does not have any special provision for statistics.com students, but may provide a free student edition version of this software if you are enrolled in a university. For the free student version, click here, or for academic pricing for others click here.

A trial copy of Stata is available for use in some courses. It does standard statistics, resampling, time series, regression, logistic regression, GLM and GEE. To request the trial copy, email service@stata.com and inform them that you are taking a course with statistics.com and tell them which of our courses you are taking. Please also provide your name, mailing address, and platform requested (Windows, Mac, Linux). Installation CDs are $20.00 plus shipping. For more information about Stata, visit the Stata Corp website:
www.stata.com

Statistical process control, quality control, design of experiment, simulation, statistics, graphics and data management functionality are available in a free 30-day trial of STATISTICA. This software trial is only for installation on a personal computer. Download the trial:
http://www.statsoft.com/support/free-statistica-10-trial/ .

StatCrunch is an online statistical software that allows users to perform complex analyses, share data sets, and generate compelling reports of their data. Interactive graphics help users understand statistical concepts and are available for export to enrich reports with visual representations of data.

There is a nominal fee for students: $12.00 for 6 months or $22.50 for 12 months. Because it is web-based, the software can be accessed anywhere.

For more information, visit the website at www.statcrunch.com.

STATGRAPHICS is an easy-to-learn, easy-to-use personal computer software package designed for experts and non-experts alike. It combines a broad range of statistical procedures with interactive graphics. A 30-day trial copy of STATGRAPHICS Centurion for Windows is available at statgraphics.co. A free copy of STATGRAPHICS Online can be accessed by Windows, Mac or Linux users at www.statgraphicsonline.com using any web browser.

Comprehensive Meta-Analysis is a software package that helps you summarize and reach conclusions from multiple studies on the same subject. Registered participants in our course "Meta Analysis" will be given access to a copy of Comprehensive Meta Analysis software in the first lesson. For more information about Comprehensive Meta-Analysis, visit: www.metaanalysis.com

Design-Expert(R) software from Stat-Ease, Inc. is a statistical package for Design of Experiments (DOE). With it you can not only screen for vital factors, but also locate ideal process settings for top performance and discover optimal product formulations. To download the free 45-day trial, you may click here. Students of statistics.com qualify for a discounted rate using this form. For more information on Design-Expert, please visit: www.statease.com/dx71descr.html

The following packages all perform specific functions in geostatistics, and are freeware. Crimestat was created for the analysis of crime location data. GeoDa is aimed at exploratory analysis of spatial data in general (if you are in a high-security network environment and encounter problems downloading GeoDa, try this alternative link: https://netfiles.uiuc.edu/koschins/shared/). LandSerf is for the visualization and analysis of surfaces. All three are referenced in the online course Spatial Statistical Analysis in Geographic Information Systems.

LEM freeware is for latent class, log multiplicative and event history models (it is also used in interpolating missing data values). It is available here.

LISREL software is used for structural equation modeling. It is available here.

MINISTEP is a free version of WINSTEPS. It is used for Rasch Measurement and is free without a time restriction. To download MINISTEP, please click here. For more information about MINISTEP, visit the MINISTEP website:
http://www.winsteps.com/ministep.htm

Mplus is statistical modeling software, with special capabilities for the inclusion of continuous and categorical latent variables. A free demo is available here. For more information, visit the Mplus website:
http://www.statmodel.com

NQuery Advisory is commercial software for calculating sample size.  It is available here - student pricing is available.

OpenEpi is free software for doing analysis of epidemiological data. It is available at www.openepi.com

A free 30 day (or 30 trial) version of this software is available to students enrolled in certain statistics.com courses. It has the ability to do power and sample size analysis. Registered participants in statistics.com's "Sample Size and Power" course will receive information at the beginning of the course on how to obtain a licensed copy for the duration of the course. For more information about Power and Precision visit the Power and Precision website:
www.power-analysis.com

A free one year license of Resampling Stats is provided for use in Statistics.com courses; first download the trial software from the site noted below, then request a one year license at the beginning of the course. Resampling Stats does resampling (bootstrapping, permutation tests). For more information about Resampling Stats visit the Resampling Stats website:
www.resample.com

With Compumine Rule Discovery System it is easy to create decision trees, rule sets, and robust ensemble models that help you to discover important segments and valuable relationships in your data, and to make reliable predictions. An evaluation version of Rule Discovery System can be freely downloaded from Compumine's web page.

The Spotfire Enterprise Analytic platform equips every employee to quickly discover new insights in the information they work with every day. Spotfire's interactive, visual capabilities for data analysis empower individuals to easily see trends, patterns outliers and unanticipated relationships in data with unprecedented speed and adaptability. To download a 30-Day TIBCO Spotfire Professional, Metrics and Network Analytics Trial click here.

A 30 day trial license of StatXact is available from Cytel. StatXact performs exact nonparametric analysis, exact analysis for categorical data, and exact sample size and power. To download your trial copy, click here and follow the instructions provided by Cytel. For more information on StatXact, visit the StatXact website:
www.cytel.com

ToxTools, with specialized dose-response modeling capabilities for toxicological analysis, is available in a time-limited version from Cytel Software Corp (www.cytel.com). If you are using this software in conjunction with statistics.com's Toxicological Risk Assessment course, do not download the software without first checking with our office -- we don't want the software to expire on you in the middle of the course.

Weka is an open source software program containing tools for data pre-processing, classification, regression, clustering, association rules, and visualization. You can run it on a Windows PC. It requires Java 1.4 or later. WEKA is a freeware program, and is available here.

WINBUGS is free software for Bayesian Markov Chain Monte Carlo (MCMC). It is available here.

WINSTEPS is software that does Rasch analysis. Purchase it here - http://www.winsteps.com/winsteps.htm . See "MINISTEP" (above) for limited evaluation version of WINSTEPS. For more information on WINSTEPS or MINISTEP please visit the WINSTEPS homepage.

This Excel add-in does multiple linear regression and logistic regression (both with variable subset selection), neural nets, CART, k-nearest neighbor, discriminant analysis, Bayesian classifier, principal components analysis, hierarchical and k-means clustering, association rules, time series, partitioning, and sampling. To obtain a 60 day trial for use with statistics.com's data mining courses, visit the Frontline Systems XLMinerwebsite , download the trial version, and request a key from Solver.com to unlock it for 60 days (be sure to specify which statistics.com course you are taking).