CIT offers statistical and mathematical software to the NIH community—SAS, SPSS, SUDAAN, S-Plus, and Mathematica. IMSL and MSTAT1 are also supported by CIT. Some software products are available for OS/390 and Unix operating systems, and will help users needing occasional or massive computing capabilities.

SAS

SAS is a data management, analysis and presentation suite. The system is built around four data-driven tasks: data access, management, analysis and presentation. SAS functionality is dependent on which modules are added to the base SAS program. SAS can be used for various projects that require database management, statistical analysis, graph and chart construction, and other data management tasks. SAS is available for OS/390, Windows, Mac and Unix operating systems.

This table highlights a few of the SAS modules offered at NIH.

Base SAS	Core of the SAS System—required for all other SAS System products. Contains the DATA step and the fundamental procedures that are needed for working with SAS data sets.
SAS/GRAPH	Produces high quality plots, bar charts, maps, text graphs and three-dimensional graphs.
SAS/STAT	Provides procedures for regression analysis, analysis of variance, categorical data analysis, multivariate analysis, discriminant analysis, scoring procedures, and survival analysis.
SAS/ACCESS	Enables SAS solutions to read, write, and update data regardless of its native database or platform. Available for DB2, Oracle, dBase, Lotus, Excel, and ODBC.
SAS/Online Tutor	Requires only a Web browser for desktop training, as well as a CIT account and registered initials.

CIT also offers two SAS standalone products: JMP and StatView. JMP helps researchers to visualize their data and understand the models being fitted, as well as to provide the necessary tools to easily and efficiently communicate research results. StatView integrates data management, statistical analyses, and presentation tools into a single intuitive and coherent desktop software package. JMP and StatView are available for Windows and Macintosh. Many other SAS products are available through CIT. Please contact TASC at (301) 594-6248 for more information.

SPSS

SPSS provides capabilities for extensive file handling and data management tasks, including advanced statistical analysis procedures (e.g., discriminant analysis, nonlinear and logistic regression analysis, and multivariate analysis of variance). SPSS is available for OS/390, Windows, and Mac operating systems, although all products are not on all operating systems.

The following table provides a brief description of the SPSS products offered at NIH.

SPSS Base	Facilitates decision making with data access, data preparation, analytical reporting and predictive modeling.
SPSS Advanced Models	Analyzes complex relationships using a high-end modeling toolkit.
SPSS Categories	Offers optimal scaling procedures that free you from the restrictions of two-way tables, placing the relationships among your variables in a larger frame of reference.
SPSS Exact Tests	Reaches correct conclusions with small samples and rare occurrences in large databases.
SPSS Maps	Demonstrates how geographic variables affect decision making when you transform SPSS data into demographic information.
SPSS Missing Values Analysis	Examines your data from several different angles with six diagnostic reports to uncover missing data patterns.
SPSS Regression Models	Makes better predictions and measures distances among your data.
SPSS Tables	Presents results in easy-to-understand tables including 35 statistics.
SPSS Trends	Improves forecasts by analyzing historical information, building models and predicting trends using powerful time-series analysis.

CIT also offers AMOS, a standalone SPSS product that replaces the old SPSS LISREL. AMOS provides easy-to-use equation modeling and is only available for Windows.

SUDAAN

SUDAAN is a single program consisting of a family of procedures used to analyze data from complex surveys and other observational and experimental studies involving cluster-correlated data. SUDAAN enables you to use survey data to obtain consistent estimates of population parameters and their standard errors in accordance with the sample design. SUDAAN also produces consistent estimates of regression coefficients, descriptive statistics, and their associated standard errors for cluster-correlated and repeated measures data applications in clinical, epidemiological, toxicological and behavioral research. SUDAAN can be installed as a standalone or SAS-callable application, and is available for OS/390 and Windows operating systems.

S-Plus

S-Plus was created specifically for data exploration and analysis, and includes built-in statistical and graphical functions. It offers specialized statistical analyses for biomedical research, such as survival analysis, generalized linear models, and analysis methods for clinical trials. S-Plus is available for Windows and Unix operating systems.

Mathematica

Mathematica can perform symbolic calculations in algebra, calculus, and higher mathematics; numerical calculations of very high precision; and detailed 2D and 3D visualizations. Mathematica is available for Windows, Mac, and Unix operating systems.

Pricing and Licensing Information

The following table outlines the general cost for license and maintenance fees. These fees include upgrades to software. The fees allow a user to download a second copy on their home computer if and only if they are the exclusive user of the software. Please note that fees might be different for specific situations and/or requirements.

Software	Operating System	First Year Fee	Renewal Fee	Download Home Copy
SAS	Windows, Mac	$640	$640	no charge
SAS	Multiuser, Unix, NT   (per machine/   per user 1)	$480/$160	$480/$160	NA
SAS JMP	Windows, Mac	$600	$300	no charge
SAS StatView	Windows, Mac	$500	NA	no charge
SPSS	Windows, Mac	$640	$325	no charge
SUDAAN	OS/390, Windows	$150	$150	no charge
S-Plus	Single User   Windows, Mac	$1000	$220	no charge
S-Plus	Multiuser, Unix	$2600	$500	no charge
S-Plus	Multiuser, NT	$1440	$220	no charge
Mathematica	Windows, Mac,   Unix	Mathematica is available at a 48% discount off the GSA list price. CIT aggregates purchases, and bills customer accordingly. Please call TASC for pricing.
1       The charge for Unix-based SAS is $480 per machine license and $160 for each user account on that machine. NA   Not available.

Obtaining Licenses from CIT

The benefits to obtaining statistical software licenses through the CIT’s Software Distribution Project (SDP) include lower cost and access to documentation. Because CIT negotiates multi-license contracts with the vendors, the cost for an individual license is lower than if purchased independently. Using SDP also reduces the overhead administration costs of negotiating contracts for multiple users. (See the article on the SDP in this issue.)

Technical Support and Assistance

  •       Licenses

To obtain software licenses and support, please contact TASC at (301) 594-6248, or send e-mail to tasc@nih.gov.