The model visualization is a spreadplot comprised of a biplot, spinplot, residuals plot and scree-plot. The spreadplot supports graphical re-estimation of model parameters. There are two versions of ViSta for the Macintosh, one for the PowerMac and one for 680xx Macintoshes. Users report that this version of ViSta also works under Windows 95, though no testing has been done. Thus, if you don't have XLispStat you must download it first, then download ViSta.
Some features are incomplete.
While quality assurance testing has been done, this is a beta-release system that is not fully mature. At the current stage of development, ViSta is viable as a supplemental statistical software system used for extra credit exercises in introductory statistics, and as the focus of graduate courses on research in computational and graphical methods in statistics. It may be premature to use ViSta in undergraduate statistics classes that need a complete and robust statistic analysis system. J. Computational and Graphical Statistics, Dec., 1995. Young, F.W., et al.