Freely Available Statistical Software On Internet
G Singh
Citation
G Singh. Freely Available Statistical Software On Internet. The Internet Journal of Medical Simulation. 2008 Volume 2 Number 2.
Abstract
Many researchers of biomedical or other areas and even statisticians who do not like to purchase popular statistical software and use to work on copied version, may download this free software according to their requirement and perform statistical analysis of data.
Following is the list of free statistical packages, the link/website of which can be found using any search engine and can be downloaded from Internet.
Now a days a large number of statistical packages for general purpose and specific purpose are available on internet free of cost and copyright restrictions that can be downloaded and can work offline. However, commercial use of these packages like mixing, editing and publishing without the permission of author is restricted. The only requirement is to quote them properly whenever used.
Basically there are two kinds of free statistical software available on internet. One, which works online (like http://www.healthcalc.com works online as calculator calculating BMI, PI etc. on entering the value of height and weight etc.) and other which works offline (noninternet) for standalone computing.
Many researchers of biomedical or other areas and even statisticians who do not like to purchase popular statistical software and use to work on copied version, may download these free software according to their requirement and perform statistical analysis of data.
Following is the list of free statistical packages, the link/website of which can be found using any search engine and can be downloaded from Internet.

determining the rate at which an event occurs (confidence levels versus numbers of false positive or negative conclusions),

determining an estimate of an averge within a tolerable error (given the standard deviation of individual measurements), and

determining the sampling grid necessary to detect “hot spots” of various assumed shapes.

WINPEPI (PEPI for Windows)  Windows versions of the renowned PEPI suite of programs

EpiCalc 2000  Statistical calculator

FP Advisor  Foodborne disease database

SigmaD  Standardisation of measurement

SOUNDEX Calculators  Confidentiality of data / identification of duplicate records

SampleXS  Sample size calculator for crosssectional surveys

SampleLQ  Sample size calculator for LQAS surveys

SampleRate  Sample size calculator for a single rate

EpiGram  Simple diagramming software

Statistical Utilities  Miscellaneous statistical and epidemiological utilities (by Ray Simons and others)

EpiInfo PLUS  A version of the classic DOS version of EpiInfo

EpiInfo Addins  Logistic regression and survival analysis for EpiInfo .REC files

MUAC screening tool  Software to determine MUAC cutpoints for twostage screening in nutritional emergencies.

CSAS coverage calculator  An Excel spreadsheet for calculating coverage estimates and drawing plots and maps from CSAS survey data. Also provides capturerecapture estimates of the sensitivity of a casefinding procedure. A spreadsheet containing example data is available here.

A brief introduction to using the R environment for analysing epidemiological data in Adobe Acrobat (.PDF) format with sample data, in a ZIP file here.
The above list is not exhaustive. There can be much more free software available on Internet for statistical analysis of data related to diverse field of research.
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