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Explore the World of Soft…e: Engineering & Science
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SIM2MVSP.SCR
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1995-07-07
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M V S P - A MultiVariate Statistical Package v.2.2
Kovach Computing Services
85 Nant-y-Felin
Pentraeth, Anglesey
LL75 8UY Wales, UK
MVSP (MultiVariate Statistical Package) is a program for the
IBM-PC and compatibles 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.
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MVSP is in use at hundreds of sites in over 50 countries.
The results of analyses using MVSP have been published in
numerous journals, including Science, Nature, Ecology,
Journal of Petroleum Geology, and Journal of Biogeography.
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MVSP performs several types of eigenanalysis ordinations:
principal components (PCA), principal coordinates (PCO),
and correspondence/detrended correspondence analyses (CA/DCA).
It can also perform cluster analysis, using nineteen different
distance or similarity measures and seven clustering
strategies. Diversity indices may be calculated on ecological
data; these include Simpson's, Shannon's, and Brillouin's
indices. Data matrices up to 750x750 may be analysed.
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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. Dendrograms of the cluster
analysis results are produce automatically. These graphs
can then be printed on a variety of output devices.
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LIST OF FEATURES OF MVSP
o Menu-driven, easy to use
o Numerous user-defined options that can be changed and saved for
future use
o Virtual memory scheme that allows large data matrices to be
analysed, limited only by the amount of disk space (up to
750x750). A protected mode version allows computers with 80286 or
higher processors to use all available RAM memory (up to 16
Mb)
o Built in spreadsheet-like data editor
o Data matrix manipulation: data may be transposed, transformed
(transformations available include logarithms to base 10, e,
and 2, square root, and Aitchison's logratio for percentage
data), converted to percentages, proportions, standard scores,
octave class scale, or range through format for stratigraphic
studies, and rows and columns may be selected for deletion
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o Data import and export; Lotus 1-2-3 and Symphony and Cornell
Ecology Programs
o Graphic support for CGA, Hercules, EGA, VGA, and Super-VGA
monitors; Epson 9 and 24 pin, IBM Proprinter, HP
Laserjet/Deskjet/ Paintjet, and Postscript printers; HP
plotter; PCX bitmaps
o Principal Components Analysis, with the following options:
correlation or covariance matrix, centred or uncentred
analysis, user defined minimum eigenvalues, including Kaiser's
and Jolliffe's rules for average eigenvalues, user defined
accuracy level
o Principal Coordinates Analysis, performed with the following
options: use any type of input similarity matrix, user defined
minimum eigenvalues and accuracy level
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o Correspondence Analysis, with these options: Hill's detrending
by segments, choice of eigenanalysis or reciprocal averaging
algorithm, weighting of rare or common taxa and scaling to
percentages, user defined minimum eigenvalues and accuracy
level
o Nineteen different similarity and distance measures, including
Euclidean, squared Euclidean, standardized Euclidean, cosine
theta (or normalized Euclidean), Manhattan metric, Canberra
metric, chord, chi-square, average, and mean character
difference distances; Pearson product moment correlation and
Spearman rank order correlation coefficients; percent
similarity and Gower's general similarity coefficient;
Sorensen's, Jaccard's, simple matching, Yule's and Nei's
binary coefficients
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o Cluster analysis, with the following options: seven strategies
(UPGMA, WPGMA, median, centroid, nearest and farthest
neighbour, and minimum variance), constrained clustering in
which the input order is maintained (e.g. stratigraphic
studies), randomized input order, integral dendrogram
production. Separate utility program allows data matrices to be
sorted in the order of the dendrograms; allows patterns to be
seen in the data
o Diversity indices, with the following options: Simpson's,
Shannon's, or Brillouin's indices, choice of log base, evenness
and number of species also calculated
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MVSP can be used as a stand-along program or invoked as an
"add-in" from SIMSTAT using the SIM2MVSP utility program. This
addin program integrates MVSP into SIMSTAT providing to MVSP
users an windows like interface with pulldown menus, context
sensitive help and mouse support.
SIM2MVSP is sent free to all registered users of SIMSTAT or MVSP.
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An evaluation version of MVSP is available from many BBS
or you can contact the author at the following address:
Warren L. Kovach
Kovach Computing Services
85 Nant-y-Felin
Pentraeth, Anglesey
LL75 8UY Wales, UK
Internet: sales@kovcomp.demon.co.uk
CompuServe: 100016,2265
tel/fax: +44-(0)1248-450414
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Further information about SIM2MVSP may also be obtained
from Kovach Computing Services or from Provalis Research
at the following address:
Normand Peladeau
Provalis Research
5000, Adam street
Montreal, QC
H1V 1W5
CANADA
CompuServe: [71760,2103]
Internet: 71770.2103@compuserve.com
Tel/Fax: 1-514-899-1672
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