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At least one package, WinIDAMS, was developed for the purposes of making key technologies available to those who could not otherwise afford them, to empower development [12]. While Microsiris doesn't appear to be used in academic research, the author of the program was one of the original authors of OSIRIS [20]which was the starting program from which WinIdams was developed [21].

Before the package is used to read the data, the data set has to be edited to put in place holder where there are missing data.

### MicrOsiris | DiRT Directory

OpenStat and Instat were developed as teaching aids [8][3]. Many of the packages have some kind of opening menu that is used microsiri get or enter the data, manipulate the data, and select the statistical analysis.

Again, using MicrOsiris as an example, the menu for regression looks like this:. Similarly, one other web site compares the statistical procedures available on free statistical packages [29]. Mucrosiris tutorials help with a basic introduction and learning the basics of programs.

All of the packages gave exactly the same results for correlation and regression. Grant reviewed some of the programing features of R, and briefly mentioned the availability of other programs.

The author of Microsiris also has also contributed or co-contributed several mivrosiris to WinIdams [21]. Then after starting the program, people generally get data, either from previously saved data sets, or importing from some other format.

In this analysis menu, people can select the variables of interest, along with other options. Rather correlation is found by regression [54]. The main reason to use free packages is probably the cost.

Support for these programs is limited to the time that the author has available. Several of the packages, PSPP, R and Osiris don't appear to give any statements about why they were developed, other than just general use for statistical analysis. A large proportion of free statistical software packages, however, are from individuals.

This article is a review of the general statistical packages. One other paper reviewed statistical packages, mainly commercial, but includes R [24]. Most of the packages have on line manuals, guides or help pages.

One limitation is specific to programs that were developed by individuals. Other packages need a 'place holder', such as miccrosiris where there is missing data [52]. At that time, several of the programs may not have had all of the desired ability micrositis advanced statistics.

### MicrOsiris Statistical Analysis and Data Management Software (Freeware) (PSC Resource)

While EpiInfo has many statistical procedures, correlation is not one of them. For example, the text command lines for frequencies look like this:. These packages come from a variety of sources, including governmentsnongovernmental organizations NGOs like Microsiriwand universitiesand are also developed by individuals.

According to the Zelig installation manual, use of Zelig requires that R and several of it's libraries already be installed, and the installation also requires some degree of background in R [11].

Two websites that list software also have very brief mkcrosiris of each package. The other packages could only handle data sets with no missing values. These two sites are StatCon [27] and by Pezzullo [28].

Most of the major commercial and free packages have many microsiros procedures in common. Then the packages can be used to the best advantage, for example, to choose the most appropriate test, to make sure all the necessary assumptions are met, so that the appropriate conclusions can be drawn. For example, MicrOsiris has an import menu like this:.

## MicrOsiris Statistical Analysis and Data Management Software (Freeware)

The data set includes '-9' and then people who are reading in the data need to tell the program that the -9 means missing data. Free statistical software is a practical alternative to commercial packages. They reviewed several programs and identified which ones, at that time, had the most functionality.

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