Biostatistics, statistical software II.

A brief survey of statistical program systems

Krisztina Boda PhD

Department of Medical Informatics, University of Szeged

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The need of a statistical computer system

Simple statistical calculations can be performed by hand, based on given formulas, significance can be stated using statistical tables. The use of a computer system makes even these simple calculations safer, and it is necessary in case of more complicated problems. There are many statistical systems; the choice of the appropriate statistical software is not easy. Here we give only a brief summary of some such systems.

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Statistical software used in Department of Medical Informatics

SPSS SAS Statistica for Windows R (EXCEL) (SiGMASTAT) (STATA)

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SPSS (Statistical Package for the Social Sciences)

pull-down menus command syntax language internal file structure, data transformations, data processing and

matching files the most important statistical methods are

included

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SPSS

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SPSS

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SPSS

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SPSS

References: SPSS 15.0 Command Syntax Reference 2006, SPSS Inc.,

Chicago Ill. http://www.spss.com, http://www.spss.hu,

http://en.wikipedia.org/wiki/SPSS Downloads (demo):

http://www.spss.com/downloads/papers.cfm SPSS 16.0 (202 MB). Download a full, working copy of SPSS for

Windows® and try it for yourself. SPSS is a modular, tightly integrated, full-featured software This evaluation copy will install SPSS Base and all add-on modules. If you purchase SPSS after the evaluation period, please consult your local sales office to ensure you order the correct modules for the features you require. Please note that this software trial will expire in approximately 14 days and is for evaluation purposes only.

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SAS (Statistical Analysis System)

The SAS System is an integrated system of software products provided by SAS Institute that enables the programmer to perform

data entry, retrieval, management, and mining; report writing and graphics;

statistical and mathematical analysis; business planning, forecasting, and decision support; operations research and project management; quality improvement; applications development and data warehousing (extract, transform,

load). Statistical language Programs of new methods

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SAS

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SAS

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SAS

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SAS

References: SAS Institute, Inc: The MIXED procedure in

SAS/STAT Software: Changes and Enhancements through Release 6.11. Copyright © 1996 by SAS Institute Inc., Cary, NC 27513.

http://www.sas.com, http://www.sas.com/offices/europe/hungary/,

http://en.wikipedia.org/wiki/SAS_programming_language

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Statistica

STATISTICA is a statistics and analytics software package developed by StatSoft, Inc.

data analysis, data management, data mining, and data visualization procedures

standard 2- and 3-dimensional graphs analytic and exploratory graphs In the help menu it contains a well-written

electronic statistical textbook.

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Statistica

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Statistica

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Statistica

References: http://www.statsoft.com/, http://www.statsoft.hu/

, Electronic textbook:

http://www.statsoft.com/textbook/stathome.html Downloads (demo):

Statsitcica 8 demo: https://www.statsoft.com/secure/demorequest.html

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R

The R programming language, sometimes described as GNU S, is a programming language and software environment for statistical computing and graphics.

R is widely used for statistical software development and data analysis, and has become a de-facto standard among statisticians for the development of statistical software. R's source code is freely available under the GNU General Public License.

R uses a command line interface, though several graphical user interfaces are available.

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R

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R

References: http://www.r-project.org/,

http://en.wikipedia.org/wiki/R_programming_language,

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Excel

Microsoft Excel (full name Microsoft Office Excel) is a spreadsheet application written and distributed by Microsoft for Microsoft Windows and Mac OS. It features calculation and graphing tools which, along with aggressive marketing, have made Excel one of the most popular microcomputer applications to date. It is overwhelmingly the dominant spreadsheet application available for these platforms. Although it is not a statistical package, it contains tools for the most frequently used simple statistical calculations. http://en.wikipedia.org/wiki/Microsoft_Excel,