Joe Abramson has developed an augmented Windows version (WINPEPI)
of the PEPI suite of programs for epidemiologists. You can
read a description of WINPEPI (published in Epidemiologic
Perspectives & Innovations) by clicking http://www.epi-perspectives.com/content/8/1/1.
A list of currently available functions and procedures is available here.
The last update (version 11.18) was posted to this site on Janauary 17,
2012.
Download the
latest version of WINPEPI as an executable (.EXE) file (5.2 mb).
The downloaded file will be WinPepiSetup.exe. Alternatively, you
can download it in a ZIP archive :
Download the
latest version of WINPEPI as a .ZIP archive (5.2 mb)
which you will have to open to access WinPepiSetup.exe.
When you run WinPepiSetup.exe, it will install the latest WINPEPI
programs and manuals, and an index to the statistical procedures and programs,
in any folder you select. Older versions will be replaced. Follow the
instructions, and your desktop will have a portal to the programs and manuals,
the index, and relevant Internet sites.
No changes are made to the Windows registry.
As a third alternative, if
you do not have permission to use an installation program (but can download
executable files in a zip file), download WinPepiFiles.zip, which
contains all the components of WINPEPI, but no installation program. You will
have to open this zip file and copy its contents to a directory of your choice
(overwriting any previous versions), and manually put a shortcut to winpepi.exe
(the portal program) on your desktop.
Download
the WINPEPI files in a ZIP archive (without an installation program) (7.1 mb).
All the programs are now 32-bit applications, and will run in any
version of Microsoft Windows except Windows 3.
A report from the McAfee Site Advisor confirms that Winpepi and other
software offered on this web-site are "free of adware, spyware and other
potentially unwanted programs".
RECENT ADDITIONS
The main recent additions are:Similarities and dissimilarities between
frequency distributions (COMPARE2 2.66, PAIRSAetc 2.99, normal cumulative
distribution function (WHATIS 4.55), derivation of risks, risk differences and risk and odds ratios
from mean values, derivation of confidence intervals for difference between
means from a P value (COMPARE2 2.65), level-importance of each predictor in
multiple regression, sample size for regression analysis (ETCETERA 2.65), Shewhart and Cusum procedures for
the detection of outbreaks, cut-points for screening and diagnostic tests based
on Youden's index, (DESCRIBE
2.40), derivation of confidence intervals for measures of association from P
value or odds ratio (PAIRSetc 2.98)
A fuller list of recent changes is provided in pepinews.txt, which is
included in this download.
To avoid problems with administrator rights in recent versions of
Windows, all results are now automatically saved in PEPI.TXT in the Winpepi
folder, instead of in C:\PEPI.TXT, where older results may be found.
The currently available WINPEPI programs are :
COMPARE2.EXE - For comparisons of two independent groups
or samples. The current version number is 2.66.
DESCRIBE.EXE - For use in descriptive epidemiology including
the appraisal of separate samples in comparative studies. The current version
number is 2.40.
ETCETERA.EXE - Miscellaneous (randomization, random
sampling, adjustment of multiple-test p-values, appraisal of synergism,
assessment of a scale, correlation-coefficient tools, large contingency tables,
three-way tables, median polish and mean polish, appraisal of effect of
unmeasured confounders). The current version number is 2.65.
LOGISTIC.EXE - Multiple logistic regression. The current
version number is 140.
PAIRSetc.EXE - For appraisal of differences and
agreement between matched samples or observations. The current version number
is 2.99.
POISSON.EXE - Multiple Poisson regression. The current
version number is 1.24.
WHATIS.EXE - An expression evaluator (with storage of
constants, interim results, and formulae) and calculator for p values (and
their inverse), confidence intervals, and time spans. The current version
number is 4.55.
Manuals are supplied in PDF format, which can be read with (e.g.) Foxit Reader or the Adobe Acrobat Reader.
For a paper describing the
programs, see Abramson,J.H.
WINPEPI updated: computer programs for epidemiolog'ists, and their teaching
potential. Epidemiologic Perspectives & Innovations 2011, 8:1 (can be
accessed via the WinPepi portal, and is available on the Internet at
www.epi-perspectives.com/content/8/1/1).
The programs and their uses are also described in Encyclopedia of
Research Design (ed. N.J. Salkind), vol. 3, Sage Publications, 2010,
1633-1636. A description was also
published in the Epidemiology Monitor 2007 28(Oct.): 1-7, with an update in the
March 2009 issue. There is a brief and usually out-of-date description in
Wikipedia.
Please report any problems you experience or any suggestions you may
have to improve the package. E-mail your comments &c.