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VISTA


ViSta (The Visual Statistics System) is a software written by Forrest W.Young, Professor of Psychometrics at the University of North Carolina at Chapel Hill.
As it is described on the website, this software helps you to see what your data seem to say. Indeed it has its strengths in visualizations which are highly dynamic and very interactive, showing you multiple views of your data simultaneously.
ViSta is an open source software (but to contribute to it you have to get a password from the author) and it is available for Windows, Macintosh and Unix.
ViSta is an extensible software, since it is open to new contributors (programs written in Fortran, in C and in XlispStat are accessible from within ViSta).
ViSta can perform various kind of analysis , also thanks to the implementation of some plugins you can download from its website. In particular ViSta can carry out univariate and various kind of multivariate analysis (for example principal component).
ViSta is mainly useful in teaching in univariate and multivariate statistics courses, but it can be also utilized in research.
Though it is expected a further enlargement of its functions in the future (but now it is still at 6.4 as last stable version), ViSta has to be considered a software with some significant limits. At this moment also its interaction with software like Excel is difficult.
ViSta graphic interface has a top windows-style menu, but you can also give inputs from command line in the lower part of the screen. The workspace is subdivided between the workmap where the various steps of analysis are listed (and from here you can get either numerical results and graphich visualizations), and the datasheet, where you can enter data to process.


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