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<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML//EN"><html><head><title>SOM Toolbox</title></head><body bgcolor=#f0f0f0><table border=0 width="100%" cellpadding=0 cellspacing=0><tr><td valign=baseline><font size=+2>SOM Toolbox</font></td><td valign=baseline align=right><a href="../../helpdesk.html" target="_top">Help Desk</a></td></tr></table><hr><p><center>[ <a href="#byfunc">Grouped by function</a> | <a href="#bysort">Alphabetical order</a> ]</center><p><b>NOTE:</b> Some of the files have no helpdisk help file.For them, the only available documentation is in the function file itself.Try command <tt>'help <function_name>'</tt> in Matlab prompt.<a name="byfunc"><H2> Grouped by function </H2></a><DL><P><DT><B>Demos</B></DT><P><DD><TT>som_demo1</TT>: SOM Toolbox demo 1: basic properties<DD><TT>som_demo2</TT>: SOM Toolbox demo 2: basic usage<DD><TT>som_demo3</TT>: SOM Toolbox demo 3: visualization<DD><TT>som_demo4</TT>: SOM Toolbox demo 4: data analysis<P><DT><B>Creation of structs</B></DT><P><DD><TT><a href="som_set.html">som_set</a></TT>: create & set (& check) values to structs<DD><TT><a href="som_info.html">som_info</a></TT>: print out information on a given struct <DD><TT><a href="som_data_struct.html">som_data_struct</a></TT>: create & initialize a data struct <DD><TT><a href="som_map_struct.html">som_map_struct</a></TT>: create & initialize a map struct <DD><TT><a href="som_topol_struct.html">som_topol_struct</a></TT>: create & initialize a topology struct <DD><TT><a href="som_train_struct.html">som_train_struct</a></TT>: create & initialize a train struct <P><DT><B>Struct conversion and file I/O</B></DT><P><DD><TT><a href="som_vs1to2.html">som_vs1to2</a></TT>: converts a version 1.0 struct to version 2.0 struct<DD><TT><a href="som_vs2to1.html">som_vs2to1</a></TT>: converts a version 2.0 struct to version 1.0 struct<DD><TT><a href="som_read_data.html">som_read_data</a></TT>: reads a (SOM_PAK format) ASCII data file<DD><TT><a href="som_write_data.html">som_write_data</a></TT>: writes a SOM_PAK format codebook file<DD><TT><a href="som_write_cod.html">som_write_cod</a></TT>: writes a SOM_PAK format data file<DD><TT><a href="som_read_cod.html">som_read_cod</a></TT>: reads a SOM_PAK format codebook file<P><DT><B>Data preprocessing</B></DT><P><DD><TT><a href="som_normalize.html">som_normalize</a></TT>: normalize data set<DD><TT><a href="som_denormalize.html">som_denormalize</a></TT>: denormalize data set <DD><TT><a href="som_norm_variable.html">som_norm_variable</a></TT>: (de)normalize one variable<DD><TT><a href="preprocess.html">preprocess</a></TT>: preprocessing GUI<P><DT><B>Initialization and training functions</B></DT><P><DD><TT><a href="som_make.html">som_make</a></TT>: create, initialize and train a SOM<DD><TT><a href="som_randinit.html">som_randinit</a></TT>: random initialization algorithm<DD><TT><a href="som_lininit.html">som_lininit</a></TT>: linear initialization algorithm<DD><TT><a href="som_seqtrain.html">som_seqtrain</a></TT>: sequential training algorithm<DD><TT><a href="som_batchtrain.html">som_batchtrain</a></TT>: batch training algorithm<DD><TT><a href="som_gui.html">som_gui</a></TT>: SOM initialization and training GUI<DD><TT>som_prototrain</TT>: a simple version of sequential training: easy to modify<P><DT><B>Clustering algorithms</B></DT><P><DD><TT>som_kmeans</TT>: k-means algorithm<DD><TT>kmeans_clusters</TT>: try and evaluate several k-means clusterings<DD><TT>neural_gas</TT>: neural gas vector quantization algorithm<P><DT><B>Supervised/classification algorithms</B></DT><P><DD><TT><a href="som_supervised.html">som_supervised</a></TT>: supervised SOM algorithm<DD><TT><a href="lvq1.html">lvq1</a></TT>: LVQ1 algorithm<DD><TT><a href="lvq3.html">lvq3</a></TT>: LVQ3 algorithm<DD><TT>knn</TT>: k-NN classification algorithm<P><DT><B>SOM error measures</B></DT><P><DD><TT><a href="som_quality.html">som_quality</a></TT>: quantization and topographic error of SOM<DD><TT>som_distortion</TT>: SOM distortion measure<P><DT><B>Auxiliary functions</B></DT><P><DD><TT><a href="som_bmus.html">som_bmus</a></TT>: calculates BMUs for given data vectors<DD><TT>som_divide</TT>: extract subsets of data based on map<DD><TT><a href="som_label.html">som_label</a></TT>: give labels to map units<DD><TT><a href="som_autolabel.html">som_autolabel</a></TT>: automatically labels the SOM based on given data<DD><TT><a href="som_unit_coords.html">som_unit_coords</a></TT>: calculates coordinates in output space for map units<DD><TT><a href="som_unit_dists.html">som_unit_dists</a></TT>: distances in output space between map units<DD><TT><a href="som_unit_neighs.html">som_unit_neighs</a></TT>: units in 1-neighborhood for each map unit<DD><TT><a href="som_neighborhood.html">som_neighborhood</a></TT>: calculates neighborhood matrix for the given map<DD><TT>som_select</TT>: GUI for manual selection of map units<DD><TT>som_estimate_gmm</TT>: create Gaussian mixture model on top of SOM<DD><TT>som_probability_gmm</TT>: evaluate Gaussian mixture model<DD><TT>som_ind2sub</TT>: from linear index to subscript index <DD><TT>som_sub2ind</TT>: from subscript index to linear index<DD><TT>nanstats</TT>: mean, std and median which ignore NaNs<P><DT><B>Using SOM_PAK from Matlab</B></DT><P><DD><TT><a href="som_sompaktrain.html">som_sompaktrain</a></TT>: uses SOM_PAK to train a map<DD><TT>sompak_gui</TT>: GUI for using SOM_PAK from Matlab<DD><TT>sompak_init</TT>: call SOM_PAK's initialization programs from Matlab<DD><TT>sompak_init_gui</TT>: GUI for using SOM_PAK's initialization from Matlab<DD><TT>sompak_rb_control</TT>: an auxiliary function for sompak_*_gui functions.<DD><TT>sompak_sammon</TT>: call SOM_PAK's Sammon program from Matlab<DD><TT>sompak_sammon_gui</TT>: GUI for using SOM_PAK's Sammon program from Matlab<DD><TT>sompak_train</TT>: call SOM_PAK's training program from Matlab<DD><TT>sompak_train_gui</TT>: GUI for using SOM_PAK's training program from Matlab <P><DT><B>Visualization</B></DT><P><DD><TT><a href="som_show.html">som_show</a></TT>: basic visualization<DD><TT><a href="som_show_add.html">som_show_add</a></TT>: add labels, hits and trajectories<DD><TT><a href="som_show_clear.html">som_show_clear</a></TT>: remove extra markers<DD><TT><a href="som_recolorbar.html">som_recolorbar</a></TT>: refresh/reconfigure colorbars<DD><TT><a href="som_grid.html">som_grid</a></TT>: visualization of SOM network<DD><TT><a href="som_cplane.html">som_cplane</a></TT>: component planes and U-matrices<DD><TT><a href="som_barplane.html">som_barplane</a></TT>: bar chart visualization of map<DD><TT><a href="som_pieplane.html">som_pieplane</a></TT>: pie chart visualization of map<DD><TT><a href="som_plotplane.html">som_plotplane</a></TT>: plot chart visualization of map<DD><TT>som_trajectory</TT>: launches a GUI for presenting comet-trajectories <P><DT><B>Auxiliary functions for visualization</B></DT><P><DD><TT><a href="som_hits.html">som_hits</a></TT>: calculates the response of data on the map<DD><TT><a href="som_umat.html">som_umat</a></TT>: calculates the U-matrix<DD><TT>cca</TT>: curvilinear component analysis projection algorithm<DD><TT>pcaproj</TT>: principal component projection algorithm<DD><TT>sammon</TT>: Sammon's mapping projection algorithm<DD><TT><a href="som_connection.html">som_connection</a></TT>: connection matrix for map <DD><TT><a href="som_vis_coords.html">som_vis_coords</a></TT>: map unit coordinates used in visualizations<DD><TT>som_colorcode</TT>: create color coding for map/2D data<DD><TT>som_bmucolor</TT>: colors of the BMUs from a given map color code<DD><TT>som_normcolor</TT>: simulate indexed colormap<DD><TT>som_clustercolor</TT>: color coding which depends on clustering structure<DD><TT>som_kmeanscolor</TT>: color coding according to k-means clustering<P><DT><B>Low level routines used by visualization functions</B></DT><P><DD><TT><a href="vis_patch.html">vis_patch</a></TT>: defines hexagonal and rectangular patches<DD><TT>vis_som_show_data</TT>: returns UserData and subplot handles stored by som_show.m<DD><TT>vis_valuetype</TT>: used for type checks <DD><TT>vis_footnote</TT>: adds a movable text to the current figure <DD><TT>vis_trajgui</TT>: the actual GUI started by som_trajectory.m <DD><TT>vis_PlaneAxisProperties</TT>: set axis properties in visualization functions⌨️ 快捷键说明
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