actually i have problem with classification EEG this is a last step in my program i am getting errors

function varargout = classification(varargin)

varargout{1} = handles.output;

function pushbutton1_Callback(hObject, eventdata, handles)

load trainfea;

load testfea;

load truelabel

target=truelabel;

groups = ismember(target,'0');

SVMStruct = fitcssvm(trainfea(1:20,:),target(1,1:20),'showplot',true);

classes = ClassificationSVM(SVMStruct,trainfea(:,:),'showplot',true)

class=ClassificationSVM(SVMStruct,testfea);

if class==1

load emotiontrainfea;

load emolabel;

T = emotiontrainfea;

tst=testfea;

[itr] = multisvm( T,emolabel',tst);

if (itr==1)

msgbox('Fear');

end

if (itr==2)

msgbox('Anger');

end

if (itr==3)

msgbox('calm');

end

if (itr==4)

msgbox('Happy');

end

if (itr==5)

msgbox('Sad');

end

end

if class==0

msgbox('Stress');

end

cp=classperf(target',classes);

a=cp.CorrectRate;

b=cp.sensitivity

c=cp.specificity

a(1,1)=a*100;

b=b*100;

c=c*100;

set(handles.edit1,'string',a);

set(handles.edit2,'string',b);

set(handles.edit3,'string',c);

function edit1_Callback(hObject, eventdata, handles)

function edit1_CreateFcn(hObject, eventdata, handles)

if ispc && isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor'))

set(hObject,'BackgroundColor','white');

end

function edit2_Callback(hObject, eventdata, handles)

function edit2_CreateFcn(hObject, eventdata, handles)

if ispc && isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor'))

set(hObject,'BackgroundColor','white');

end

function edit3_Callback(hObject, eventdata, handles)

hObject handle to edit3 (see GCBO)

eventdata reserved - to be defined in a future version of MATLAB

handles structure with handles and user data (see GUIDATA)

function edit3_CreateFcn(hObject, eventdata, handles)

if ispc && isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor'))

set(hObject,'BackgroundColor','white');

end