gusucode.com > SOM算法,matlab程序,是经典的教科书的例子程序 > somtoolbox/Contents.m
% SOM Toolbox
% Version 2.0beta, May 30 2002
%
% Copyright 1997-2000 by
% Esa Alhoniemi, Johan Himberg, Juha Parhankangas and Juha Vesanto
% Contributed files may contain copyrights of their own.
%
% SOM Toolbox comes with ABSOLUTELY NO WARRANTY; for details
% see License.txt in the program package. This is free software,
% and you are welcome to redistribute it under certain conditions;
% see License.txt for details.
%
%
% Demos
%
% som_demo1 SOM Toolbox demo 1: basic properties
% som_demo2 SOM Toolbox demo 2: basic usage
% som_demo3 SOM Toolbox demo 3: visualization
% som_demo4 SOM Toolbox demo 4: data analysis
%
% Creation of structs
%
% som_set create & set (& check) values to structs
% som_info print out information on a given struct
% som_data_struct create & initialize a data struct
% som_map_struct create & initialize a map struct
% som_topol_struct create & initialize a topology struct
% som_train_struct create & initialize a train struct
% som_clstruct create a cluster struct
% som_clset set properties in a cluster struct
% som_clget get stuff from a cluster struct
%
% Struct conversion and file I/O
%
% som_vs1to2 converts a version 1.0 struct to version 2.0 struct
% som_vs2to1 converts a version 2.0 struct to version 1.0 struct
% som_read_data reads a (SOM_PAK format) ASCII data file
% som_write_data writes a SOM_PAK format codebook file
% som_write_cod writes a SOM_PAK format data file
% som_read_cod reads a SOM_PAK format codebook file
%
% Data preprocessing
%
% som_normalize normalize data set
% som_denormalize denormalize data set
% som_norm_variable (de)normalize one variable
% preprocess preprocessing GUI
%
% Initialization and training functions
%
% som_make create, initialize and train a SOM
% som_randinit random initialization algorithm
% som_lininit linear initialization algorithm
% som_seqtrain sequential training algorithm
% som_batchtrain batch training algorithm
% som_gui SOM initialization and training GUI
% som_prototrain a simple version of sequential training: easy to modify
%
% Clustering algorithms
%
% som_kmeans k-means algorithm (was earlier kmeans)
% kmeans_clusters try and evaluate several k-means clusterings
% neural_gas neural gas vector quantization algorithm
% som_linkage hierarchical clustering algorithms
% som_cllinkage hierarchical clustering of SOM
% som_dmatminima local minima from distance (or U-) matrix
% som_dmatclusters distance (or U-) matrix based clustering
% som_clspread spreads clusters to unassinged map units
% som_cldist calculate distances between clusters
% som_gapindex gap validity index of clustering
% db_index Davies-Bouldin validity index of clustering
%
% Supervised/classification algorithms
%
% som_supervised supervised SOM algorithm
% lvq1 LVQ1 algorithm
% lvq3 LVQ3 algorithm
% knn k-NN classification algorithm
% knn_old k-NN classification algorithm (old version)
%
% SOM error measures
%
% som_quality quantization and topographic error of SOM
% som_distortion SOM distortion measure
% som_distortion3 elements of the SOM distortion measure
%
% Auxiliary functions
%
% som_bmus calculates BMUs for given data vectors
% som_eucdist2 pairwise squared euclidian distances between vectors
% som_mdist calculates pairwise distances between vectors
% som_divide extract subsets of data based on map
% som_label give labels to map units
% som_label2num rcodes string data labels to interger class labels
% som_autolabel automatically labels the SOM based on given data
% som_unit_coords calculates coordinates in output space for map units
% som_unit_dists distances in output space between map units
% som_unit_neighs units in 1-neighborhood for each map unit
% som_neighborhood calculates neighborhood matrix for the given map
% som_neighbors calculates different kinds of neighborhoods
% som_neighf calculates neighborhood function values
% som_select GUI for manual selection of map units
% som_estimate_gmm create Gaussian mixture model on top of SOM
% som_probability_gmm evaluate Gaussian mixture model
% som_ind2sub from linear index to subscript index
% som_sub2ind from subscript index to linear index
% som_ind2cod from linear index to SOM_PAK linear index
% som_cod2ind from SOM_linear index to SOM_PAK linear index
% nanstats mean, std and median which ignore NaNs
% som_modify_dataset add, remove, or extract samples and components
% som_fillnans fill NaNs in a data set based on given SOM
% som_stats statistics of a data set
% som_drmake calculate descriptive rules for a cluster
% som_dreval evaluate descriptive rules for a cluster
% som_drsignif rule significance measures
%
% Using SOM_PAK from Matlab
%
% som_sompaktrain uses SOM_PAK to train a map
% sompak_gui GUI for using SOM_PAK from Matlab
% sompak_init call SOM_PAK's initialization programs from Matlab
% sompak_init_gui GUI for using SOM_PAK's initialization from Matlab
% sompak_rb_control an auxiliary function for sompak_*_gui functions.
% sompak_sammon call SOM_PAK's Sammon program from Matlab
% sompak_sammon_gui GUI for using SOM_PAK's Sammon program from Matlab
% sompak_train call SOM_PAK's training program from Matlab
% sompak_train_gui GUI for using SOM_PAK's training program from Matlab
%
% Visualization
%
% som_show basic visualization
% som_show_add add labels, hits and trajectories
% som_show_clear remove extra markers
% som_recolorbar refresh/reconfigure colorbars
% som_show_gui GUI for using som_show and associated functions
% som_grid visualization of SOM grid
% som_cplane component planes and U-matrices
% som_barplane bar chart visualization of map
% som_pieplane pie chart visualization of map
% som_plotplane plot chart visualization of map
% som_trajectory launches a GUI for presenting comet-trajectories
% som_dendrogram visualization of clustering tree
% som_plotmatrix pairwise scatter plots and histograms
% som_order_cplanes order and visualize the component planes
% som_clplot plots of clusters (based on cluster struct)
% som_projections_plot projections plots (see som_projections)
% som_stats_plot plots of statistics (see som_stats)
%
% Auxiliary functions for visualization
%
% hits calculates hits, or sum of values for each map unit
% som_hits calculates the response of data on the map
% som_umat calculates the U-matrix
% cca curvilinear component analysis projection algorithm
% pcaproj principal component projection algorithm
% sammon Sammon's mapping projection algorithm
% som_connection connection matrix for map
% som_vis_coords map unit coordinates used in visualizations
% som_colorcode create color coding for map/2D data
% som_bmucolor colors of the BMUs from a given map color code
% som_normcolor simulate indexed colormap
% som_clustercolor color coding which depends on clustering structure
% som_kmeanscolor color coding according to k-means clustering
% som_kmeanscolor2 a newer version of the som_kmeanscolor function
% som_fuzzycolor a fuzzy color coding
% som_coloring a SOM-based color coding
% som_projections calculates a default set of projections
%
% Report generation stuff
%
% som_table_struct creates a table struct
% som_table_modify modifies a table struct
% som_table_print print a table in various formats
% rep_utils various utilities for printing report elements
% som_stats_table a table of data set statistics
% som_stats_report report on data set statistics
%
% Low level routines used by visualization functions
%
% vis_patch defines hexagonal and rectangular patches
% vis_som_show_data returns UserData and subplot handles stored by som_show.m
% vis_valuetype used for type checks
% vis_footnote adds a movable text to the current figure
% vis_trajgui the actual GUI started by som_trajectory.m
% vis_PlaneAxisProperties set axis properties in visualization functions
% vis_footnoteButtonDownFcn callback function for vis_footnote.m
% vis_planeGetArgs converts topol struct to lattice, msize argument pair
% vis_show_gui_comp internal function used by som_show_gui.m
% vis_show_gui_tool internal function used by som_show_gui.m
%
% Other
%
% somtoolbox this file
% iris.data IRIS data set (used in demos)
% License.txt GNU General Public License
% Copyright.txt Copyright notice