xiezhh2.m

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function varargout = xiezhh2(varargin)
% XIEZHH2 M-file for xiezhh2.fig
%      XIEZHH2, by itself, creates a new XIEZHH2 or raises the existing
%      singleton*.
%
%      H = XIEZHH2 returns the handle to a new XIEZHH2 or the handle to
%      the existing singleton*.
%
%      XIEZHH2('CALLBACK',hObject,eventData,handles,...) calls the local
%      function named CALLBACK in XIEZHH2.M with the given input arguments.
%
%      XIEZHH2('Property','Value',...) creates a new XIEZHH2 or raises the
%      existing singleton*.  Starting from the left, property value pairs are
%      applied to the GUI before xiezhh2_OpeningFunction gets called.  An
%      unrecognized property name or invalid value makes property application
%      stop.  All inputs are passed to xiezhh2_OpeningFcn via varargin.
%
%      *See GUI Options on GUIDE's Tools menu.  Choose "GUI allows only one
%      instance to run (singleton)".
%
% See also: GUIDE, GUIDATA, GUIHANDLES

% Copyright 2002-2003 The MathWorks, Inc.

% Edit the above text to modify the response to help xiezhh2

% Last Modified by GUIDE v2.5 06-Sep-2006 18:07:15

% Begin initialization code - DO NOT EDIT
gui_Singleton = 1;
gui_State = struct('gui_Name',       mfilename, ...
                   'gui_Singleton',  gui_Singleton, ...
                   'gui_OpeningFcn', @xiezhh2_OpeningFcn, ...
                   'gui_OutputFcn',  @xiezhh2_OutputFcn, ...
                   'gui_LayoutFcn',  [] , ...
                   'gui_Callback',   []);
if nargin && ischar(varargin{1})
    gui_State.gui_Callback = str2func(varargin{1});
end

if nargout
    [varargout{1:nargout}] = gui_mainfcn(gui_State, varargin{:});
else
    gui_mainfcn(gui_State, varargin{:});
end
% End initialization code - DO NOT EDIT


% --- Executes just before xiezhh2 is made visible.
function xiezhh2_OpeningFcn(hObject, eventdata, handles, varargin)
% This function has no output args, see OutputFcn.
% hObject    handle to figure
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
% varargin   command line arguments to xiezhh2 (see VARARGIN)

% Choose default command line output for xiezhh2
handles.output = hObject;

% Update handles structure
guidata(hObject, handles);

% UIWAIT makes xiezhh2 wait for user response (see UIRESUME)
% uiwait(handles.figure1);


% --- Outputs from this function are returned to the command line.
function varargout = xiezhh2_OutputFcn(hObject, eventdata, handles) 
% varargout  cell array for returning output args (see VARARGOUT);
% hObject    handle to figure
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)

% Get default command line output from handles structure
varargout{1} = handles.output;


% --- Executes on button press in pushbutton1.
function pushbutton1_Callback(hObject, eventdata, handles)
% hObject    handle to pushbutton1 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)

userdata=get(gcf,'userdata');
i=length(userdata)+1;
x=get(gcbo,'value');
if x>0
    userdata(i)=x;
end
set(gcf,'userdata',userdata);

pph1=findobj(gcf,'tag','popupmenu1');
udata1=get(pph1,'value');
pph2=findobj(gcf,'tag','popupmenu2');
udata2=get(pph2,'value');
edit_handle1=findobj(gcf,'tag','edit1');
n1=get(edit_handle1,'string');
n1=str2num(n1);
edit_handle2=findobj(gcf,'tag','edit2');
n2=get(edit_handle2,'string');
n2=str2num(n2);
edit_handle4=findobj(gcf,'tag','edit3');
n4=get(edit_handle4,'string');
n4=str2num(n4);
str1=strr1(udata2);
n=length(str1);

switch udata1
    case 1
        if ~isempty(n1)&~isempty(n2)
            if n2<=0
                warndlg('方差不能为负数或0');
            else
                n2=sqrt(n2);
                x=n1-3.4*n2:6.8*n2/100:n1+3.4*n2;
                y=normpdf(x,n1,n2);
                if n>1
                    if rem(i,7)==0
                        plot(x,y,str1(7))                        
                    else
                        plot(x,y,str1(rem(i,7)))                        
                    end
                else
                    plot(x,y,str1)
                end
                hold on
                text(n1+0.5*n2,0.95*normpdf(n1,n1,n2),['\mu=',num2str(n1),',','\sigma=',num2str(n2)])
                xlabel('X')
                ylabel('f(x)')
                plot(n1*ones(11,1),0:0.1*max(y):max(y),':k')                
            end
        else            
            warndlg('参数不能为空');
        end
        
    case 2
        if ~isempty(n1)&~isempty(n2)
            if n1>=n2
                warndlg('请正确输入均匀分布的参数，左端点应小于右端点');
            else
                x=n1-0.2*(n2-n1):(n2-n1)/100:n2+0.2*(n2-n1);
                y=unifpdf(x,n1,n2);
                if n>1
                    if rem(i,7)==0
                        plot(x,y,str1(7))
                        set(gca,'Ylim',[0 1.5/(n2-n1)])
                    else
                        plot(x,y,str1(rem(i,7)))
                        set(gca,'Ylim',[0 1.5/(n2-n1)])
                    end
                else
                    plot(x,y,str1)
                    set(gca,'Ylim',[0 1.5/(n2-n1)])
                end
                hold on
                text((n1+n2)/2,1.2/(n2-n1),['a=',num2str(n1),',','b=',num2str(n2)])
                xlabel('X')
                ylabel('f(x)')                              
            end
        else
            warndlg('参数不能为空');
        end
       
    case 3
        if ~isempty(n4)
            if n4<=0
                warndlg('指数分布的参数只能为正数');
            else
                xinv1=expinv(0.001,n4);
                xinv2=expinv(0.999,n4);
                x=xinv1+eps:0.01*(xinv2-xinv1):xinv2;
                y=exppdf(x,n4);
                if n>1
                    if rem(i,7)==0
                        plot(x,y,str1(7))                        
                    else
                        plot(x,y,str1(rem(i,7)))                        
                    end
                else
                    plot(x,y,str1)                    
                end
                hold on
                text(expinv(0.5,n4),exppdf(expinv(0.5,n4),n4),['\lambda=',num2str(n4)])
                xlabel('X')
                ylabel('f(x)')                               
            end
        else
            warndlg('参数不能为空');
        end     
end
%set(edit_handle1,'string','')
%set(edit_handle2,'string','')
%set(edit_handle4,'string','')


% --- Executes on button press in pushbutton2.
function pushbutton2_Callback(hObject, eventdata, handles)
% hObject    handle to pushbutton2 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)

userdata=get(gcf,'userdata');
i=length(userdata)+1;
x=get(gcbo,'value');
if x>0
    userdata(i)=x;
end
set(gcf,'userdata',userdata);

pph1=findobj(gcf,'tag','popupmenu1');
udata1=get(pph1,'value');
pph2=findobj(gcf,'tag','popupmenu2');
udata2=get(pph2,'value');
edit_handle1=findobj(gcf,'tag','edit1');
n1=get(edit_handle1,'string');
n1=str2num(n1);
edit_handle2=findobj(gcf,'tag','edit2');
n2=get(edit_handle2,'string');
n2=str2num(n2);
edit_handle4=findobj(gcf,'tag','edit3');
n4=get(edit_handle4,'string');
n4=str2num(n4);
str1=strr1(udata2);
n=length(str1);

switch udata1
    case 1
        if ~isempty(n1)&~isempty(n2)
            if n2<=0
                warndlg('方差不能为负数或0');
            else
                n2=sqrt(n2);
                x=n1-3.4*n2:6.8*n2/100:n1+3.4*n2;
                y=normcdf(x,n1,n2);
                if n>1
                    if rem(i,7)==0