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MVSP, Multivariate Statistical Package, ver 3

MVSP - A MultiVariate Statistical Package is a program for Windows 95/98/NT/2000 that performs a variety of ordination and cluster analyses. These include several types of eigenanalysis ordinations: principal components (PCA), principal coordinates (PCO), and correspondence/detrended correspondence analyses (CA/DCA). It also does canonical correspondence analysis (CCA), a technique highly popular in ecological studies.

The program has an all new easy to use Windows interface. A sample screen is available.

It can also perform cluster analysis, using 20 different distance or similarity measures and seven clustering strategies. A dual clustering option lets you produce dendrograms of both variables and cases in one step, along with a copy of the original data matrix, sorted in the same order as the dendrograms. Constrained clustering may also be performed, so that the original input data order is maintained. Diversity indices may be calculated on ecological data; these include Simpson's, Shannon's, and Brillouin's indices.

The number of cases and variables that can be analysed is limited only by the amount of memory available to Windows (RAM and hard disk swap file), up to a maximum of 2 billion cases and variables.

GRAPHICS

Once your data have been analysed you can plot the results directly. Select the ordination axes you want to see and scattergrams will be drawn. Joint plots of both variables and cases can be drawn for CA results. Euclidean biplots of PCA results (with variables as vectors) can be produced, as can biplots of the environmental variables in CCA. Scree plots can also be produced for PCA, PCO and CA/CCA. Dendrograms of the cluster analysis results are produce automatically. These graphs can be customized, with your favorite settings being saved for future use.

Scatterplots of the original variables can also be produced, as well as box and whisker plots summarizing each variable. All graphs have a zoom feature that lets you magnify parts of the graph for easier viewing.

OTHER FEATURES

MVSP offers various data manipulation features, such as transformation, merging of two or more data files, and conversion to formats such as range-through. Data can be imported from and exported to a variety of formats, including Lotus 1-2-3, Excel, Quattro, xBase, Paradox, Cornell Ecology Program format and various plain text files.

A fully customizable toolbar is available. Also, the data editor and other windows have multiple level undo, letting you reverse any changes you have made in the current session.

Requirements: Windows 95/98/NT/2000/Vista/7/8 including 64 bit versions, 8 Mb RAM memory, 5 Mb disk space.

Cost: $295 ($255 download), $205 academic ($165 download). Upgrade from version 2 $130. For multiple user licenses there is a 30% discount for 10-24 users and a discount for 25-49 users.

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1-631 339 4764, Toll-free within USA: 1-888-695-0285
FAX: 1-713-422-2361
P.O. Box 521, E. Setauket, NY 11733 USA
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