The initial development of OpenEpi was supported by a grant from the Bill and Melinda Gates Foundation to Emory University. OpenEpi, Epi Info, and EpiData were developed with the goal of providing simple tools for low- and moderate-resource areas of the world. We see OpenEpi as a useful companion to Epi Info and to other programs such as SAS, SPSS, Stata, and EpiData. It is the first step toward an entirely Web-based suite of epidemiologic software tools. OpenEpi was initially developed to perform analyses found in the disk operating system (DOS) version of Epi Info modules StatCalc and EpiTable, to improve on the types of analyses provided by these modules, and to provide a number of tools and calculations not currently available in Epi Info. The OpenEpi developers have had extensive experience in developing and testing Epi Info, a program developed by the Centers for Disease Control and Prevention (CDC) and used worldwide for data entry and analysis. The program is available in English, French, Italian, and Spanish. The source code and documentation are freely downloadable and available for use by other investigators. The program can be run from the OpenEpi website or downloaded and run without a Web connection. Therefore, it can run under various Web browsers, such as Microsoft ® Explorer, Firefox ®, Safari, and Opera, and on a number of operating systems, such as Windows, Macintosh, and Linux. 2 – 7 OpenEpi was developed in JavaScript and hypertext markup language (HTML) and can be run in browsers supporting these languages. OpenEpi ( is a free, Web-based, open-source, operating system-independent series of programs designed for use in public health and medicine-for training or practice-that provide a number of epidemiologic and statistical tools for summary data. Because of the aforementioned limitations, we decided to develop a program to assist in teaching epidemiologic and statistical procedures. For some of the commercial and free programs mentioned, many epidemiologic parameters and statistical calculations taught in SPH courses are not provided in the programs. While they are probably the most commonly used commercial programs in epidemiology, 1 and are incredibly powerful, they do have certain characteristics that limit their use in low- to moderate-resource situations: ( 1) they tend to be expensive beyond the reach of some SPHs worldwide, ( 2) they tend to be complicated to learn and use, ( 3) they have a number of hardware/computer requirements, and ( 4) user support may not be readily available.įree epidemiologic programs, such as Epi Info ( and EpiData ( are also available. A number of commercial programs are available, many of which are taught in schools of public health (SPHs), such as SAS ®, SPSS ®, and Stata ®. Frequently, many of these may be initially calculated by hand with a calculator and then later using computer software. Here’s an example Java class M圜lass.During graduate training in public health, students are exposed to a number of epidemiologic and statistical formulae. Here’s an example of the Java "Could not find or load main class" error thrown when an incorrect class name is specified during execution: Incorrect directory path on the classpath.Įrror: Could not find or load main class Example.Missing dependencies from the classpath.
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