MVSP 3.22

The name MVSP stands for Multi-Variate Statistical Package. MVSP was developed to be an inexpensive and easy to use program that performs a number of multivariate numerical analyses useful in many scientific fields. It calculates three basic types of eigenanalysis ordinations: principal components, principal coordinates, and correspondence/detrended correspondence analyses.

MVSP uses the KCS desktop metaphor. You can spread out your data, the statistical results and graphs in front of you while you study them, just like paper on your desktop. It also has a notepad where you can jot down ideas and observations.

Try new graphs, add new data, peruse the results, then print or save just those that you need. When you exit MVSP you can save the position and contents of all the windows on your desktop. Later you can restore it to the same state. MVSP lets you pick up where you left off. Multiple desktops can be saved for different projects.

Once your data have been analyzed 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 drawn automatically. These graphs can be customized, with your favourite settings being saved for future use.

FEATURES:

· Easy to use, with modern Windows interface (configurable toolbar, context menus, simple menu structure).
· Numerous user-defined options that are automatically saved for future use.
· Saveable desktop; you can save all the results, graphs and notes of the current analysis session to disk, then restore them later to resume where you left off.
· Unlimited number of variables and cases (restricted only by available Windows memory, including both RAM and hard disk swap file).

Data matrix manipulation:
· Built in spreadsheet-like data editor; includes full multilevel undo capabilities, row and column deletion and insertion.
· Transposition of matrix.
· Transformation of data, using logarithms to base 10, e, and 2, square root, Aitchison’s logratio for percentage data, and standardization. Individual variables may be selected for transformation.
· Conversion to range through format for stratigraphic studies.
· Can assign individual cases to pre-designated groups; these are then shown on results and graphs.
· Merging of several data files into one.
· Data import and export; Lotus 1-2-3 and Symphony, Excel, Quattro, xBase, Paradox, SIMSTAT, plain text and Cornell Ecology Programs.
· Import process eased by the use of the Import Preview dialog; lets you preview the imported data and change options to ensure successful results.