sde_solver.m

主成分分析和偏最小二乘SquaresPrincipal成分分析（ PCA ）和偏最小二乘（ PLS ）

        end
    catch
        errordlg('Wrong file format','File error');
    end
end


% --- Executes on button press in save.
function save_Callback(hObject, eventdata, handles)
% hObject    handle to save (see GCBO)
% handles    structure with handles and user data (see GUIDATA)
[file,path] = uiputfile('*.mat','Save System As');
if file~=0
    sde.dx=get(handles.x,'string');
    sde.f=get(handles.f,'string');
    sde.g=get(handles.g,'string');
    sde.agnv=get(handles.agnv,'string');
    sde.annv=get(handles.annv,'string');
    sde.init=get(handles.init,'string');
    sde.info=get(handles.edit_info,'string');
    sde.time=get(handles.edit_length,'string');
    str=get(handles.solver,'string');
    sde.solver=str{get(handles.solver,'value')};
    save([path file],'sde');
end



% --- Executes during object creation, after setting all properties.
function edit_info_CreateFcn(hObject, eventdata, handles)
% hObject    handle to edit_info (see GCBO)
% handles    empty - handles not created until after all CreateFcns called

if ispc
    set(hObject,'BackgroundColor','white');
else
    set(hObject,'BackgroundColor',get(0,'defaultUicontrolBackgroundColor'));
end



function edit_info_Callback(hObject, eventdata, handles)
% hObject    handle to edit_info (see GCBO)
% handles    structure with handles and user data (see GUIDATA)


% --- Executes during object creation, after setting all properties.
function x_CreateFcn(hObject, eventdata, handles)
% hObject    handle to x (see GCBO)
% handles    empty - handles not created until after all CreateFcns called

if ispc
    set(hObject,'BackgroundColor','white');
else
    set(hObject,'BackgroundColor',get(0,'defaultUicontrolBackgroundColor'));
end


% --- Executes on selection change in x.
function x_Callback(hObject, eventdata, handles)
% hObject    handle to x (see GCBO)
% handles    structure with handles and user data (see GUIDATA)

set([handles.x handles.f handles.g handles.agnv handles.annv handles.init],'value',get(hObject,'Value'));

% --- Executes during object creation, after setting all properties.
function f_CreateFcn(hObject, eventdata, handles)
% hObject    handle to f (see GCBO)
% handles    empty - handles not created until after all CreateFcns called

if ispc
    set(hObject,'BackgroundColor','white');
else
    set(hObject,'BackgroundColor',get(0,'defaultUicontrolBackgroundColor'));
end



% --- Executes during object creation, after setting all properties.
function g_CreateFcn(hObject, eventdata, handles)
% hObject    handle to g (see GCBO)
% handles    empty - handles not created until after all CreateFcns called

if ispc
    set(hObject,'BackgroundColor','white');
else
    set(hObject,'BackgroundColor',get(0,'defaultUicontrolBackgroundColor'));
end




% --- Executes during object creation, after setting all properties.
function agnv_CreateFcn(hObject, eventdata, handles)
% hObject    handle to agnv (see GCBO)
% handles    empty - handles not created until after all CreateFcns called

if ispc
    set(hObject,'BackgroundColor','white');
else
    set(hObject,'BackgroundColor',get(0,'defaultUicontrolBackgroundColor'));
end



% --- Executes during object creation, after setting all properties.
function annv_CreateFcn(hObject, eventdata, handles)
% hObject    handle to annv (see GCBO)
% handles    empty - handles not created until after all CreateFcns called

if ispc
    set(hObject,'BackgroundColor','white');
else
    set(hObject,'BackgroundColor',get(0,'defaultUicontrolBackgroundColor'));
end



% --- Executes during object creation, after setting all properties.
function init_CreateFcn(hObject, eventdata, handles)
% hObject    handle to init (see GCBO)
% handles    empty - handles not created until after all CreateFcns called

if ispc
    set(hObject,'BackgroundColor','white');
else
    set(hObject,'BackgroundColor',get(0,'defaultUicontrolBackgroundColor'));
end


% --- Executes on button press in add.
function add_Callback(hObject, eventdata, handles)
% hObject    handle to add (see GCBO)
% handles    structure with handles and user data (see GUIDATA)

N=length(get(handles.x,'string'));
x={};
for i=1:N
    x{i}=['dx' num2str(i)];
end
set(handles.x,'string',x);
prompt={'Enter f:',...
        'Enter g:',...
        'Enter additive Gaussian noise variance:',...
        'Enter additve white noise variance:',...
        'Enter initial condition:'};
dlg_title = ['Enter equation for dx'  num2str(N+1) ' (f and g parts)'];
num_lines= 1;
def     = {'','','0','0','0.5'};
answer  = inputdlg(prompt,dlg_title,num_lines,def);
if ~isempty(answer)
    x=get(handles.x,'string');
    f=get(handles.f,'string');
    g=get(handles.g,'string');
    agnv=get(handles.agnv,'string');
    annv=get(handles.annv,'string');
    init=get(handles.init,'string');
    x{N+1}=['dx' num2str(N+1)];
    f{N+1}=answer{1};
    g{N+1}=answer{2};
    agnv{N+1}=answer{3};
    annv{N+1}=answer{4};
    init{N+1}=answer{5};
    set([handles.x, handles.f, handles.g, handles.agnv, handles.annv, handles.init],'value',N+1);
    set(handles.x,'string',x);
    set(handles.f,'string',f);
    set(handles.g,'string',g);
    set(handles.agnv,'string',agnv);
    set(handles.annv,'string',annv);
    set(handles.init,'string',init);
end


% --- Executes on button press in modify.
function modify_Callback(hObject, eventdata, handles)
% hObject    handle to modify (see GCBO)
% handles    structure with handles and user data (see GUIDATA)

x=get(handles.x,'string');
f=get(handles.f,'string');
g=get(handles.g,'string');
agnv=get(handles.agnv,'string');
annv=get(handles.annv,'string');
init=get(handles.init,'string');
selection=get(handles.x,'value');
if isempty(x)
    x{1}='dx1'; f{1}=''; g{1}=''; agnv{1}='0'; annv{1}='0'; init{1}='0.5';
end

prompt={'Enter f:',...
        'Enter g:',...
        'Enter additive Gaussian noise variance:',...
        'Enter additve white noise variance:',...
        'Enter initial condition:'};
dlg_title = ['Modify equation for ' x{selection}];
num_lines= 1;
def     = {f{selection},g{selection},agnv{selection},annv{selection},init{selection}};
answer  = inputdlg(prompt,dlg_title,num_lines,def);
if ~isempty(answer)
    f{selection}=answer{1};
    g{selection}=answer{2};
    agnv{selection}=answer{3};
    annv{selection}=answer{4};
    init{selection}=answer{5};
    set(handles.x,'string',x);
    set(handles.f,'string',f);
    set(handles.g,'string',g);
    set(handles.agnv,'string',agnv);
    set(handles.annv,'string',annv);
    set(handles.init,'string',init);
end


% --- Executes on button press in delete.
function delete_Callback(hObject, eventdata, handles)
% hObject    handle to delete (see GCBO)
% handles    structure with handles and user data (see GUIDATA)

x=get(handles.x,'string');
f=get(handles.f,'string');
g=get(handles.g,'string');
agnv=get(handles.agnv,'string');
annv=get(handles.annv,'string');
init=get(handles.init,'string');
selection=get(handles.x,'value');
if isempty(x)
    return
end

n_f={}; n_g={}; n_agnv={};n_annv={}; n_init={}; n_x={};
k=1;
for i=1:length(x)
    if i~=selection
        n_f{k}=f{i};
        n_g{k}=g{i};
        n_agnv{k}=agnv{i};
        n_annv{k}=annv{i};
        n_init{k}=init{i};
        n_x{k}=x{i};
        k=k+1;
    end
end
set([handles.x, handles.f, handles.g, handles.agnv, handles.annv, handles.init],'value',max([1 selection-1]));

set(handles.x,'string',n_x);
set(handles.f,'string',n_f);
set(handles.g,'string',n_g);
set(handles.agnv,'string',n_agnv);
set(handles.annv,'string',n_annv);
set(handles.init,'string',n_init);


% --- Executes during object creation, after setting all properties.
function solver_CreateFcn(hObject, eventdata, handles)
% hObject    handle to solver (see GCBO)
% handles    empty - handles not created until after all CreateFcns called

% Hint: popupmenu controls usually have a white background on Windows.
%       See ISPC and COMPUTER.
if ispc
    set(hObject,'BackgroundColor','white');
else
    set(hObject,'BackgroundColor',get(0,'defaultUicontrolBackgroundColor'));
end
set(hObject,'string',{'Milstein (Ito SDE)'});

% --- Executes on selection change in solver.
function solver_Callback(hObject, eventdata, handles)
% hObject    handle to solver (see GCBO)
% handles    structure with handles and user data (see GUIDATA)

% Hints: contents = get(hObject,'String') returns solver contents as cell array
%        contents{get(hObject,'Value')} returns selected item from solver