hi ,im doing gui. there are 3 push button , one push button load folder x, one push button load folder y and one push button divide value from push button one and two, but im having this error

??? Undefined function or variable 'RMSmaxf_before'.

Error in ==> enfaiz>pushbuttonFRRBEFORE_Callback at 198 MF=RMSmaxf_before

Error in ==> gui_mainfcn at 96 feval(varargin{:});

Error in ==> enfaiz at 42 gui_mainfcn(gui_State, varargin{:});

Error in ==> @(hObject,eventdata)enfaiz('pushbuttonFRRBEFORE_Callback',hObject,eventdata,guidata(hObject))

??? Error while evaluating uicontrol Callback

Answer 1

[Chiranjit]

it seems you have not define RMSmaxf_before

why dont you put your code here so that we can look at it

Answer 2

[nur hidayah]

% --- Executes on button press in pushbuttonflex.

function pushbuttonflex_Callback(hObject, eventdata, handles)

% hObject handle to pushbuttonflex (see GCBO)

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

% handles structure with handles and user data (see GUIDATA)

[fname,dirpath]= uigetfile('*.xlsx')

 num = xlsread([dirpath,fname])
% 
% 
time_flex=num(:,1);

emgsignal_flex=num(:,3);

fs=1000

nfft=512;

f=(0:nfft-1)*(fs/nfft); % % butterworth

 n=4; Wn=40/500;

[b ,a] = butter (n,Wn,'high');

fsig_x=filter (b,a,emgsignal_flex);

rms_flexion_before=[6001:9002,3]

rms_extension_before=[9003:11000,3] %

step=75;

window=75;

wavSigf_before=fsig_x(rms_flexion_before)

% RMS of wavSigf

lx = length(wavSigf_before);

i=1;

while(i<lx/step-window/step)

   X = wavSigf_before(1+(i-1)*step:(i-1)*step+window);

   yf(i)=sqrt(mean(X.*X));

   i=i+1;

end

%max (yf)=RMSmaxf_before

RMSmaxf_before=max (yf)

guidata(hObject, handles);

% % --- Executes on button press in pushbuttonfullflex.

 function pushbuttonfullflex_Callback(hObject, eventdata, handles)

% % hObject handle to pushbuttonfullflex (see GCBO)

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

% % handles structure with handles and user data (see GUIDATA) % % [fname,dirpath]= uigetfile('*.xlsx')

 num = xlsread([dirpath,fname])

time_fullflex=num(:,1);

emgsignal_fullflex=num(:,3);

fs=1000

nfft=512;

f=(0:nfft-1)*(fs/nfft); % % butterworth

 n=4; Wn=40/500;

[b ,a] = butter (n,Wn,'high');

fsig_y=filter (b,a,emgsignal_fullflex);

rms_fullflexion_before=[6001:9002,6]

step=75;

window=75; % % wavSigff_before=fsig_y(rms_fullflexion_before)

% RMS of wavSigff

lx = length(wavSigff_before);

i=1;

while(i<lx/step-window/step)

   X = wavSigff_before(1+(i-1)*step:(i-1)*step+window);

   yff(i)=sqrt(mean(X.*X));

   i=i+1;

end

%mean (yff)=RMSavgff_before

RMSavgff_before=mean (yff)

guidata(hObject, handles);

% % --- Executes on button press in pushbuttonFRRBEFORE.

 function pushbuttonFRRBEFORE_Callback(hObject, eventdata, handles)

% % hObject handle to pushbuttonFRRBEFORE (see GCBO)

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

% % handles structure with handles and user data (see GUIDATA) % % % %

handles.output=hObject;

 MF=RMSmaxf_before

 AFF=RMSavgff_before

 FRR_before= (MF/AFF);

and the error is above...