NTSYSpc, Numerical Taxonomy System

Version 2.2 for Windows NT/2000/XP & Vista
NTSYSpc can be used to detect the pattern and structure of multivariate data. For example, you may want to verify that a sample of data points indicates that the samples can come from two or more special populations or to calculate phylogenetically tree using neighbor joining or UPGMA methods to build dendrograms . With equal interest is the discovery that a change in some subsets of variables are interrelated (recovered). Origin as NTSYS program in 1960, but over the years has been completely redesigned and greatly expanded use a computer.

The data may be descriptive information about collections of objects or directly measured similarities or differences between all pairs of objects. Species descriptions and used items depends on demand abundances and morphological characters, species presence and absence of property, etc. NTSYSpc can transform data, evaluation of DUI similarities between objects, and prepare a summary analysis using group relations, coordination and analysis several factors. Many of the results can be shown by numerical and graphical. The software is designed for classroom and research.

Version 2.2 for Windows is easy to use, but still has speed and functionality than previous versions. There is an interactive way (with "fill in blank" forms of entry) and the batch mode with a simple command language (useful for simulation and analysis of multiple data sets). The program makes use of the Windows environment and allows long file names and processing of large datasets. Land options window allows you to customize plots (specify titles, fonts, sizes, colors, sizes, line widths, background colors, borders, and many other aspects of what is plotted). There is also a print preview mode. NTS data files are ASCII files that can be shared with other programs. Long lines of data are maintained. A spreadsheet-like editor is included information that makes it easy to create and edit data files. It can also be used as a ASCII text editor for very large files. Matrices can be read by Excel, CSV and XLS files, and the tree can be read from one type of file. Another alternative is provided for the production of MATLAB files M.

Some features include NTSYSpc are listed below.
Similarity and difference: the correlation distance, association coefficients, 34 and 11 genetic distance coefficients.
Clustering: UPGMA and SAHN methods other hierarchical (allows connections). Proximity switch method (including new version of unweighted). Some types of consensus trees.
Graph theoretic methods: the minimum time, which includes trees. Graphics (ineradicable trees) from the neighbor to switch method.
Coordination: The main components and basic coordinates analysis, correspondence analysis, metric and non-metric multidimensional scale analysis, singular value-decompositions, projections on the axes and the method of Burnaby. Canonical variates analysis. Several programs for analysis, common principal components analysis, partial least squares, multiple correlation and canonical correlation are also included.
Interactive graphics: phenograms, phylogenetically trees, 2D scatter plots, compared to DUI / similarity matrices, the outlines of the Fourier plots, plots Procrustes and the prospect of 3-D plots.
Multivariate Tests: canonical variates analysis, tests for homogeneity of Covariance matrices, tests for the number of dimensions, generalized multivariate multiple regression analysis. There are also provisions for the Bootstrap, jackknife and simulation experiments.
Geometric Morphometrics: includes specialized modules for Procrustes analysis configuration lay important plot the results of the Procrustes analysis, Fourier analysis (including 2D and 3D ellipsoid) shapes of the contour, plot outlines and Fourier coefficients, and calculation of 2D and 3D partial results and evaluations of all stays uniform.
Other: includes comparison of matrices of cophenetic correlation, Mantel test, 3-way Mantel test, data standardization and transformations of the matrix (simple functions, delete, and move now matrix). Matrices can be split or combined.

Requirements: Windows NT/2000/ME/XP/Vista. Works with about 9 MB of disk space after installation is complete.