gui_help.m

fast fixed-point ICA算法的Matlab实现

function gui_help(which_help)
%
% Used by FASTICAG

% All the help texts and title used by GUI are stored here. 
% Make changes here.
% Also displays the helpwindow with the selected text

% @(#)$Id: gui_help.m,v 1.3 2004/04/29 10:28:55 jarmo Exp $

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switch which_help
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case 'pcamat'

  helptitle = 'FastICA: Reduce dimension';
  helptext=[ ...
    'You may reduce the dimension of the data by selecting only the     '
    'subspace corresponding to certain eigenvalues of the covariance    '
    'matrix of the data. Give the indices of the first and last         '
    'eigenvalues (sorted in descending order) to be included (all       '
    'eigenvalues in between will be included as well).  The eigenvalues '
    'and their indices can be seen in the graphical plot now on the     '
    'screen. The heights of the bars give the eigenvalues, with indices '
    'below.                                                             '
    '                                                                   '
    'For example, give ''1'' and ''n'' if you want to reduce the dimension  '
    'to n by principal component analysis, which means discarding the   '
    'subspaces corresponding to the smallest eigenvalues. Such a        '
    'dimension reduction may reduce noise and improve the performance of'
    'ICA.                                                               '];


%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
case 'gui_cb_about'

  helptitle='About FastICA';
  helptext =[ ...
    'FastICA for Matlab 6.x                                                    '
    'Version 2.2, April 29 2004                                              '
    'Copyright (c) Jarmo Hurri, Hugo G鋠ert, Jaakko S鋜el