zcf_help.m

多元统计程序包

function varargout = zcf_help(varargin)
% ZCF_HELP Application M-file for zcf_help.fig
%    FIG = ZCF_HELP launch zcf_help GUI.
%    ZCF_HELP('callback_name', ...) invoke the named callback.

% Last Modified by GUIDE v2.0 25-Oct-2003 21:28:34

if nargin == 0  % LAUNCH GUI

	fig = openfig(mfilename,'reuse');

	% Use system color scheme for figure:
	set(fig,'Color',get(0,'defaultUicontrolBackgroundColor'));
    set(fig, 'Name', '关于主成分');

	% Generate a structure of handles to pass to callbacks, and store it. 
	handles = guihandles(fig);
	guidata(fig, handles);
    str = {'        在实际工程问题的统计分析中，为了获取充分的信息，对问题作出较可靠的推断',...
        '，我们往往选择多个特征变量（指标）去进行观测，而这些特征变量甚至会多到十几',...
        '个或几十个，因为每个特征变量都在不同程度上反映所研究问题的信息。但是，特征',...
        '变量个数太多常常会增加对问题分析的复杂性。因此，人们自然希望选取的特征变量',...
        '个数较少而得到的信息较多。在很多情况下，这些特征变量之间有一定的相关关系，',...
        '当两个特征变量有一定相关关系时，可以解释为这两个特征变量反映的信息有一定的',...
        '重迭。'...
        '        主成分分析就是为解决类似于上述问题而引进的统计方法。简而言之，主成分分',...
        '析是研究如何将多个特征变量综合成少数几个变量的一种统计方法。'}; 
    set(handles.zcf_help_text, 'String', str);

	if nargout > 0
		varargout{1} = fig;
	end

elseif ischar(varargin{1}) % INVOKE NAMED SUBFUNCTION OR CALLBACK

	try
		if (nargout)
			[varargout{1:nargout}] = feval(varargin{:}); % FEVAL switchyard
		else
			feval(varargin{:}); % FEVAL switchyard
		end
	catch
		disp(lasterr);
	end

end


%| ABOUT CALLBACKS:
%| GUIDE automatically appends subfunction prototypes to this file, and 
%| sets objects' callback properties to call them through the FEVAL 
%| switchyard above. This comment describes that mechanism.
%|
%| Each callback subfunction declaration has the following form:
%| <SUBFUNCTION_NAME>(H, EVENTDATA, HANDLES, VARARGIN)
%|
%| The subfunction name is composed using the object's Tag and the 
%| callback type separated by '_', e.g. 'slider2_Callback',
%| 'figure1_CloseRequestFcn', 'axis1_ButtondownFcn'.
%|
%| H is the callback object's handle (obtained using GCBO).
%|
%| EVENTDATA is empty, but reserved for future use.
%|
%| HANDLES is a structure containing handles of components in GUI using
%| tags as fieldnames, e.g. handles.figure1, handles.slider2. This
%| structure is created at GUI startup using GUIHANDLES and stored in
%| the figure's application data using GUIDATA. A copy of the structure
%| is passed to each callback.  You can store additional information in
%| this structure at GUI startup, and you can change the structure
%| during callbacks.  Call guidata(h, handles) after changing your
%| copy to replace the stored original so that subsequent callbacks see
%| the updates. Type "help guihandles" and "help guidata" for more
%| information.
%|
%| VARARGIN contains any extra arguments you have passed to the
%| callback. Specify the extra arguments by editing the callback
%| property in the inspector. By default, GUIDE sets the property to:
%| <MFILENAME>('<SUBFUNCTION_NAME>', gcbo, [], guidata(gcbo))
%| Add any extra arguments after the last argument, before the final
%| closing parenthesis.