MVSP is a program for Windows that performs a variety
of ordination and cluster analyses. It provides an
inexpensive yet easy means of analysing your data in
fields ranging from ecology and geology to sociology
and market research. MVSP is in use at hundreds of
sites in over 60 countries.

MVSP performs 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. 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.

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