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多维数据处理：MATLAB源程序用于处理多维数据

% The N-way Toolbox for MATLAB 
% Version 1.03 11-Oct-1999
% Copyright (c) 1995-99 Claus A. Andersson & Rasmus Bro, KVL, Denmark
% Download from http://www.models.kvl.dk/source/nwaytoolbox/
% $Revision: 1.0.0$  $24-Jan-1999$  $CA/RB$
%
% MODELS
%   parafac   N-way PARAFAC with weighted or unweighted loss
%             function. Optional: Non-negativity, orthogonality,
%             unimodality, missing values. 
%   dtld      Direct trilinear decomposition
%   gram      Generalized rank annihilation
%   tucker    N-way Tucker2-3 models. Handles missing values.
%             Optional: Orthogonality, non-negativity.
%   npls      N-way PLS. Handles missing values
%   npred     Predicting new samples using existing N-PLS model
% 
% GENERAL TOOLS
%   Maxdia3   Rotates factors and cores from the N-way Tucker model
%             for optimal super-diagonality
%   Maxvar3   Rotates factors and cores from the N-way Tucker model
%             for optimal variance-of-squares
%   Maxswd3   Rotates factors and cores from the N-way Tucker model
%             for optimal slice-wise diagonality
%   fac2let   Converts output to ordinary component matrices/loadings
%   ppp	      Triple-P product (reversed Khatri-Rao product)
%   ncosine   Multiple cosine/Tuckers congruence/UCC between several sets of loading matrices
%   nmodel    Estimates the data from the model parameters
%   nprocess  Preprocess array. Center and scale multi-way arrays
%   corcond   Core consistency diagnostics of a PARAFAC model
%   calccore  Calculates the N-way core array
%   pftest    Helps in deciding the correct number of components in PARAFAC
%
% PLOT AND ARRANGE AUXILIARY FILES
%   pfplot    Graphical output routine for PARAFAC
%   nshape    Rearranges an N-way array
%   refold3   Helps in fixing errorneous foldings
%   tplot3f   Plot summary of solutions
%   plotfac   Plots solutions from general N-way models
%   explcore  Helps interpret the N-way core array
%
% NUMERICAL ANALYSIS
%   ulsr      Unimodal least squares regression
%   fastnnls  Non-negativity constrained regression, fast version
%   monreg    Monotone regression
%   pfls      General least squares regression routine
%
% DEMOS
%   tuckdemo  Demonstrates how to use the Tucker3 model and routines
%
% GETTING STARTED
%   See readme.txt and http://www.models.kvl.dk/courses/
%   for interactive courses on N-way analysis using the N-way Toolbox