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Mx
Matrix algebra interpreter and numerical optimizer for structural equation modeling and other types of statistical modeling of data.
http://www.vcu.edu/mx/
Vcu.edu ~
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GraphPad QuickCalcs
Dozens of free online calculators, including those for radioactivity calculations, detecting outliers, t tests, ANOVA post tests, chi-square, Fishers test, and confidence interval of a proportion.
http://www.graphpad.com/quickcalcs/
Graphpad.com ~
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|STAT
30 data manipulation and analysis utilities: ANOVA, regression, rank order, contingency table, time series, descriptive statistics. Written in C for DOS, Unix. Command line interface usable in shell scripts. Free.
http://oldwww.acm.org/perlman/stat/
Acm.org ~
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FreeIRT Project
The FreeIRT Project is a database of free programs written in one of the main statistical languages (SAS, Splus, Stata...) to analyze Quality of Life Scales, mainly by the Item Response Theory (IRT)
http://freeirt.anaqol.org
Anaqol.org ~
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Free Statistics
An index of free mathematical software. Sorted alphabetically by program name. Includes screenshots. Most are for use with Windows only.
http://www.freestatistics.info/stat.php
Freestatistics.info ~
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MacStats
Clearinghouse for information about Mac software for statistical analysis, including regression, ANOVA and structural equation modeling, as well as general math software. Covers Mac OS 7 through OS X.
http://www.macstats.org/
Macstats.org ~
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