Why is my GUI program producing an error when I 'Run' it?

When I run the below .m file, it gives me the following error:

Error using feval
Undefined function 'frequency_axes_CreateFcn' for input arguments of type 'matlab.graphics.axis.Axes'.

Error in gui_mainfcn (line 95)
        feval(varargin{:});

Error in TestInterface (line 43)
    gui_mainfcn(gui_State, varargin{:});

Error in @(hObject,eventdata)TestInterface('frequency_axes_CreateFcn',hObject,eventdata,guidata(hObject))

Any idea why? Here's the code from my .m:

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

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

% Copyright 2001-2006 The MathWorks, Inc.

% Last Modified by GUIDE v2.5 31-May-2015 00:38:11

% Begin initialization code - DO NOT EDIT
gui_Singleton = 1;
gui_State = struct('gui_Name',          mfilename, ...
                   'gui_Singleton',     gui_Singleton, ...
                   'gui_OpeningFcn',    @TestInterface_OpeningFcn, ...
                   'gui_OutputFcn',     @TestInterface_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 TestInterface is made visible.
function TestInterface_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 TestInterface (see VARARGIN)

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

% Update handles structure
guidata(hObject, handles);

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

% --- Outputs from this function are returned to the command line.
function varargout = TestInterface_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;

% --------------------------------------------------------------------
function plot_button_Callback(hObject, eventdata, handles, varargin)
% hObject    handle to plot_button (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
set(0,'DefaultFigureColor','White',...
     'defaultaxesfontsize',8,...
     'DefaultAxesFontname','Calibri',...
     'DefaultTextFontName','Calibri')
x = [0:20];
y = [0:20];

% Get user input from GUI
f1 = str2double(get(handles.f1_input,'String'));
f2 = str2double(get(handles.f2_input,'String'));
constant = str2double(get(handles.constant,'String'));

% Calculate data
TestFormula = @(x,y)(x + y.*constant);
[X,Y] = meshgrid(x,y);
Z1 = TestFormula(X,Y);
Z2 = TestFormula(f1,f2);

% Create frequency plot in proper axes
%plot(handles.frequency_axes,f,m(1:257))
s1 = surf(X,Y,Z1)
set(handles.edit5,'String',Z2)
xlabel('X', 'fontweight', 'bold')
ylabel('Y', 'fontweight', 'bold')
%title('(A)', 'FontSize', 12, 'fontweight', 'bold')
view (135,15);
yh = get(gca,'YLabel'); % Handle of the y label
set(yh, 'Units', 'Normalized')
pos = get(yh, 'Position');
set(yh, 'Position',pos.*[0.85,0.6,1],'Rotation',-10.9)
xh = get(gca,'XLabel'); % Handle of the x label
set(xh, 'Units', 'Normalized')
pos = get(xh, 'Position');
set(xh, 'Position',pos.*[1,1,1],'Rotation',11.1)
zlabel('Z', 'fontweight', 'bold')
zh = get(gca,'ZLabel'); % Handle of the z label
set(zh, 'Units', 'Normalized')
pos = get(zh, 'Position');
set(zh, 'Position',pos.*[1.5,1,0],'Rotation',90)
%set(handles.frequency_axes,'XMinorTick','on')
axis tight
camlight
lighting phong
shading interp
set(s1,'FaceColor',[0 0.63 0.91], 'edgecolor',[0 0 0.4],'meshstyle','both','linewidth',.15);
grid on

function f1_input_Callback(hObject, eventdata, handles)
% hObject    handle to f1_input (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)

% Hints: get(hObject,'String') returns contents of f1_input as text
%        str2double(get(hObject,'String')) returns contents of f1_input
%        as a double

% Validate that the text in the f1 field converts to a real number
f1 = str2double(get(hObject,'String'));
if isnan(f1) || ~isreal(f1)  
    % isdouble returns NaN for non-numbers and f1 cannot be complex
    % Disable the Plot button and change its string to say why
    set(handles.plot_button,'String','Cannot plot f1')
    set(handles.plot_button,'Enable','off')
    % Give the edit text box focus so user can correct the error
    uicontrol(hObject)
else 
    % Enable the Plot button with its original name
    set(handles.plot_button,'String','Plot')
    set(handles.plot_button,'Enable','on')
end

function f2_input_Callback(hObject, eventdata, handles)
% hObject    handle to f2_input (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)

% Hints: get(hObject,'String') returns contents of f1_input as text
%        str2double(get(hObject,'String')) returns contents of f1_input
%        as a double

% Validate that the text in the f2 field converts to a real number
f2 = str2double(get(hObject,'String'));
if isnan(f2) ...          % isdouble returns NaN for non-numbers
        || ~isreal(f2)    % f1 should not be complex
    % Disable the Plot button and change its string to say why
    set(handles.plot_button,'String','Cannot plot f2')
    set(handles.plot_button,'Enable','off')
    % Give the edit text box focus so user can correct the error
    uicontrol(hObject)
else 
    % Enable the Plot button with its original name
    set(handles.plot_button,'String','Plot')
    set(handles.plot_button,'Enable','on')
end

function edit5_Callback(hObject, eventdata, handles)
% hObject    handle to edit5 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)

% Hints: get(hObject,'String') returns contents of edit5 as text
%        str2double(get(hObject,'String')) returns contents of edit5 as a double

% --- Executes during object creation, after setting all properties.
function edit5_CreateFcn(hObject, eventdata, handles)
% hObject    handle to edit5 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    empty - handles not created until after all CreateFcns called

% Hint: edit controls usually have a white background on Windows.
%       See ISPC and COMPUTER.
if ispc && isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor'))
    set(hObject,'BackgroundColor','white');
end

function constant_Callback(hObject, eventdata, handles)
% hObject    handle to constant (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)

% Hints: get(hObject,'String') returns contents of constant as text
%        str2double(get(hObject,'String')) returns contents of constant as a double
constant = str2double(get(hObject,'String'));
if isnan(constant) ...          % isdouble returns NaN for non-numbers
        || ~isreal(constant)    % f1 should not be complex
    % Disable the Plot button and change its string to say why
    set(handles.plot_button,'String','Cannot plot constant')
    set(handles.plot_button,'Enable','off')
    % Give the edit text box focus so user can correct the error
    uicontrol(hObject)
else 
    % Enable the Plot button with its original name
    set(handles.plot_button,'String','Plot')
    set(handles.plot_button,'Enable','on')
end

% --- Executes during object creation, after setting all properties.
function constant_CreateFcn(hObject, eventdata, handles)
% hObject    handle to constant (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    empty - handles not created until after all CreateFcns called

% Hint: edit controls usually have a white background on Windows.
%       See ISPC and COMPUTER.
if ispc && isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor'))
    set(hObject,'BackgroundColor','white');
end

[wedze tiger]

i'm having the problem

Error in cset2_219005974 (line 41)

gui_mainfcn(gui_State, varargin{:});

Error in matlab.graphics.internal.figfile.FigFile/read>@(hObject,eventdata)cset2_219005974('XMIN_Callback',hObject,eventdata,guidata(hObject))

Error while evaluating UIControl Callback.

[Edit Rik: moved wall of code to attachment]

[Walter Roberson]

At the command prompt give the command

dbstop if error

and run the code. When the code stops, show us the complete error message, and show us the code of the function that the code stops in.

Is the code stopping at

xmin_string = get(handles.XMIN,'string');

if so, show us the output of

fieldnames(handles)
get(handles.XMIN, 'type')

[wedze tiger]

[wedze tiger]

Answer 1

[Walter Roberson]

You probably copied a GUIDE-created .fig and edited it, instead of opening the interface in GUIDE and telling GUIDE to save it under a new name. Or perhaps you deleted an axes named frequency_axes without going through GUIDE to do so.

Are you launching the interface by double-clicking on the .fig or by commanding

TestInterface

on the command line? Double-clicking would invoke a callback saved with the .fig and it is that callback,

@(hObject,eventdata)TestInterface( 'frequency_axes_CreateFcn', hObject,eventdata,guidata(hObject))

that is causing the problem.

The quick fix is adding a function to your file,

function frequency_axes_Createfcn(varargin)

that does nothing.

The longer term fix is to use the figure browser to find that callback and delete it. Or you can use findobj() or findall() to retrieve the figure properties, look at the callback functions, find the errant one and overwrite it, and re-save the .fig.

[N Y]

• hi ! I have the same problem , what I can do ?*

Error using gui_edit>load1_Callback (line 348)
Series RLC Load block (mask) does not have a parameter named 'Active power'

Error in gui_mainfcn (line 95)
      feval(varargin{:});

Error in gui_edit (line 18)
  gui_mainfcn(gui_State, varargin{:});

Error in
matlab.graphics.internal.figfile.FigFile/read>@(hObject,eventdata)gui_edit('load1_Callback',hObject,eventdata,guidata(hObject)) 
Error while evaluating UIControl Callback.

>>

[Walter Roberson]

That is a different cause than what was discussed above.

Your GUI is loading a Simulink model that contains a Series RLC Load block . Either your code attempts to set the property 'Active power' or else the saved model has an "Active power" property configured into it. However, there is no Series RLC Load block property named "Active power": there is a property "ActivePower" for which the prompt is "Active power P (W)"

If there is explicit code to set "Active power" in the load1_Callback function then it should be edited to instead set "ActivePower".

If instead the setting is somehow stored with the Simulink model, then it might be possible to fix the model. I would probably start that task by going into Simulink and opening the model and asking to run the Upgrade Advisor.

[wedze tiger]

having a problem too

[Walter Roberson]

At the command prompt command

dbstop if error

and then run your code. It will probably stop in function roots_Callback, if that function exists. You will see a an error message; please show us the complete error message.

At the time it stops, please use

dbstack

to show us where the problem occured. Please also show us the code for the function that it stopped in.

Is there a roots_Callback function in your code?

[wedze tiger]

[wedze tiger]

[Walter Roberson]

You need to change the code line

function XMIN_Callback(handles , events)

to

function XMIN_Callback(hObject, events, handles)

[wedze tiger]

thanks its working now

[Taufiq Nashrullah]

can you please help me rectify this, i guess it is similar to the above question??

Undefined function 'fitcknn' for input arguments
of type 'double'.

Error in Main>pushbutton3_Callback (line 123)
hasil1=fitcknn(Z,training,group);

Error in gui_mainfcn (line 96)
        feval(varargin{:});
        
Error in Main (line 17)
    gui_mainfcn(gui_State, varargin{:});
    
Error in
@(hObject,eventdata)Main('pushbutton3_Callback',hObject,eventdata,guidata(hObject))
 
Error while evaluating uicontrol Callback

[Walter Roberson]

fitcknn needs the Statistics toolbox from R2014a or later.

[Taufiq Nashrullah]

i'm using matlab R2013a , but still have error

[Taufiq Nashrullah]

this is my dbstop if error and the result

Undefined function 'fitcknn' for input arguments
of type 'double'.

Error in Main>pushbutton3_Callback (line 123)
hasil1=fitcknn(Z,training,group);

Error in gui_mainfcn (line 96)
        feval(varargin{:});

Error in Main (line 17)
    gui_mainfcn(gui_State, varargin{:});

Error in
@(hObject,eventdata)Main('pushbutton3_Callback',hObject,eventdata,guidata(hObject))

 
123 hasil1=fitcknn(Z,training,group);

[Walter Roberson]

fitcknn requires that you have R2014a or later with the Statistics toolbox installed and licensed.

[Walter Roberson]

There was no equivalent of fitcknn in R2013a.

[Lee Yi Zhan]

Need Help!!

Unrecognized function or variable 'textDistance_CreateFcn'.

Error in gui_mainfcn (line 95)
        feval(varargin{:});

Error in Distance1 (line 42)
    gui_mainfcn(gui_State, varargin{:});

Error in
matlab.graphics.internal.figfile.FigFile/read>@(hObject,eventdata)Distance1('textDistance_CreateFcn',hObject,eventdata,guidata(hObject)) 
>> 

[Lee Yi Zhan]

Here is my full code

function varargout = Distance1(varargin)
% DISTANCE1 MATLAB code for Distance1.fig
%      DISTANCE1, by itself, creates a new DISTANCE1 or raises the existing
%      singleton*.
%
%      H = DISTANCE1T returns the handle to a new DISTANCE1 or the handle to
%      the existing singleton*.
%
%      DISTANCE1('CALLBACK',hObject,eventData,handles,...) calls the local
%      function named CALLBACK in DISTANCE1.M with the given input arguments.
%
%      DISTANCE1('Property','Value',...) creates a new DISTANCE1 or raises the
%      existing singleton*.  Starting from the left, property value pairs are
%      applied to the GUI before Distance1_OpeningFcn gets called.  An
%      unrecognized property name or invalid value makes property application
%      stop.  All inputs are passed to Distance1_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

% Edit the above text to modify the response to help Distance1

% Last Modified by GUIDE v2.5 26-Mar-2017 20:02:22

% Begin initialization code - DO NOT EDIT
gui_Singleton = 1;
gui_State = struct('gui_Name',       mfilename, ...
                   'gui_Singleton',  gui_Singleton, ...
                   'gui_OpeningFcn', @Distance1_OpeningFcn, ...
                   'gui_OutputFcn',  @Distance1_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 DistanceMeasurement is made visible.
function Distance1_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 DistanceMeasurement (see VARARGIN)

% Choose default command line output for DistanceMeasurement
handles.output = hObject;
% Delete any opened ports in MATLAB
delete(instrfind)
% Create a Serial Object
handles.ser = serial('COM3', 'BaudRate',115200,'Terminator','LF',...
    'Timeout',10);
% Associate Serial Event, whenever Terminal Character is recived
handles.ser.BytesAvailableFcn = {@SerialEvent, hObject};
% Open Serial Port
fopen(handles.ser);
% Update handles structure
guidata(hObject, handles);

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


% --- Outputs from this function are returned to the command line.
function varargout = Distance1_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;

function SerialEvent(sObject, eventdata, hGui)
% get the updated handle
handles = guidata(hGui);
% get data from serial port
tmp_c = fscanf(sObject);
set(handles.textDistance, 'String', tmp_c)
% Updates handle structure
guidata(hGui, handles)



% --- Executes when user attempts to close figure1.
function figure1_CloseRequestFcn(hObject, eventdata, handles)
% hObject    handle to figure1 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)

fclose(handles.ser);
delete(handles.ser);
% Hint: delete(hObject) closes the figure
delete(hObject);

Answer 2

[sai kumar]

can you please help me rectify this, i guess it is similar to the above question??

Undefined function or variable 'dmessage_CreateFcn'.

Error in gui_mainfcn (line 95) feval(varargin{:});

Error in trial (line 42) gui_mainfcn(gui_State, varargin{:});

Error in matlab.graphics.internal.figfile.FigFile/read>@(hObject,eventdata)trial('dmessage_CreateFcn',hObject,eventdata,guidata(hObject))

[Walter Roberson]

Go into the .m code and write,

function dmessage_CreateFcn(hObject, eventdata, handles)
if ispc && isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor'))
    set(hObject,'BackgroundColor','white');
end

and save. You should then be able to load the file.

[sai kumar]

thanks!!... i was about to create new gui

[Lee Yi Zhan]

Having the same problem also

Unrecognized function or variable 'textDistance_CreateFcn'.

Error in gui_mainfcn (line 95)
        feval(varargin{:});

Error in Distance1 (line 42)
    gui_mainfcn(gui_State, varargin{:});

Error in
matlab.graphics.internal.figfile.FigFile/read>@(hObject,eventdata)Distance1('textDistance_CreateFcn',hObject,eventdata,guidata(hObject)) 
>> 

[Image Analyst]

@Lee Yi Zhan, looks like you're using GUIDE and you have a control, either a static text label or an edit text box, called "textDistance_CreateFcn" and there is no such function in your m-file. Probably it got deleted accidentally. What you could do is to go back into GUIDE and find that control and delete it. Then recreate a similar control and change the tag property to textDistance. This should create the textDistance_CreateFcn() function and after that it should run. If you still have trouble, start your own question and attach both the m-file and fig-file.

[Walter Roberson]

Add this to your Distance1.m file:

function textDistance_CreateFcn(hObject, eventdata, handles)
if ispc && isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor'))
    set(hObject,'BackgroundColor','white');
end

[Lee Yi Zhan]

now it can run but no readings in my GUI and there an error

Unrecognized function or variable 'textDistance_DeleteFcn'.

Error in gui_mainfcn (line 95)
        feval(varargin{:});

Error in Distance1 (line 42)
    gui_mainfcn(gui_State, varargin{:});

Error in
matlab.graphics.internal.figfile.FigFile/read>@(hObject,eventdata)Distance1('textDistance_DeleteFcn',hObject,eventdata,guidata(hObject)) 
Error using Distance1>figure1_CloseRequestFcn (line 106)
Error while evaluating UIControl DeleteFcn.

[Lee Yi Zhan]

here is my source code

function varargout = Distance1(varargin)
% DISTANCEMEASUREMENT MATLAB code for DistanceMeasurement.fig
%      DISTANCEMEASUREMENT, by itself, creates a new DISTANCEMEASUREMENT or raises the existing
%      singleton*.
%
%      H = DISTANCEMEASUREMENT returns the handle to a new DISTANCEMEASUREMENT or the handle to
%      the existing singleton*.
%
%      DISTANCEMEASUREMENT('CALLBACK',hObject,eventData,handles,...) calls the local
%      function named CALLBACK in DISTANCEMEASUREMENT.M with the given input arguments.
%
%      DISTANCEMEASUREMENT('Property','Value',...) creates a new DISTANCEMEASUREMENT or raises the
%      existing singleton*.  Starting from the left, property value pairs are
%      applied to the GUI before DistanceMeasurement_OpeningFcn gets called.  An
%      unrecognized property name or invalid value makes property application
%      stop.  All inputs are passed to DistanceMeasurement_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

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

% Last Modified by GUIDE v2.5 20-Jun-2021 15:37:46

% Begin initialization code - DO NOT EDIT
gui_Singleton = 1;
gui_State = struct('gui_Name',       mfilename, ...
                   'gui_Singleton',  gui_Singleton, ...
                   'gui_OpeningFcn', @Distance1_OpeningFcn, ...
                   'gui_OutputFcn',  @Distance1_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 DistanceMeasurement is made visible.
function Distance1_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 DistanceMeasurement (see VARARGIN)

% Choose default command line output for DistanceMeasurement
handles.output = hObject;
% Delete any opened ports in MATLAB
delete(instrfind)
% Create a Serial Object
handles.ser = serial('COM3', 'BaudRate',115200,'Terminator','LF',...
    'Timeout',10);
% Associate Serial Event, whenever Terminal Character is recived
handles.ser.BytesAvailableFcn = {@SerialEvent, hObject};
% Open Serial Port
fopen(handles.ser);
% Update handles structure
guidata(hObject, handles);

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


% --- Outputs from this function are returned to the command line.
function varargout = Distance1_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;

function SerialEvent(sObject, eventdata, hGui)
% get the updated handle
handles = guidata(hGui);
% get data from serial port
tmp_c = fscanf(sObject);
set(handles.textDistance, 'String', tmp_c)
% Updates handle structure
guidata(hGui, handles)

function textDistance_CreateFcn(hObject, eventdata, handles)
if ispc && isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor'))
    set(hObject,'BackgroundColor','white');
end

% --- Executes when user attempts to close figure1.
function figure1_CloseRequestFcn(hObject, eventdata, handles)
% hObject    handle to figure1 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)

fclose(handles.ser);
delete(handles.ser);
% Hint: delete(hObject) closes the figure
delete(hObject);

[Walter Roberson]

function textDistance_DeleteFcn(hObject, eventdata, handles)
if ispc && isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor'))

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

[Merveil Patient Noumbi Noumbi]

Please help me

Undefined function or variable ‘gui_state’.

Error in GUI_facedetection (line 42) gui_mainfcn(gui_state, varargin {:});

[Image Analyst]

@Merveil Patient Noumbi Noumbi Start your own question (not here), and attach your .fig file and .m file.

Answer 3

[Johana Galarza]

can you please help me rectify this, i guess it is similar to the above question??

Error in gui_mainfcn (line 95)
        feval(varargin{:});

Error in Campos (line 42)
    gui_mainfcn(gui_State, varargin{:});

Error in matlab.graphics.internal.figfile.FigFile/read>@(hObject,eventdata)Campos('Calcular_Callback',hObject,eventdata,guidata(hObject))

[Walter Roberson]

You did not show your full error message, but we can guess. You probably need to edit Campos.m and add

function Calcular_Callback(hObject, eventdata, handles)
  disp('Calcular_Callback called. What did you want to happen at this point?')

and save.

[Merveil Patient Noumbi Noumbi]

[Merveil Patient Noumbi Noumbi]

Please help me

Answer 4

[Amelia van Leeuwen]

Hi, I'm having similar issues! Here is my error message:

Undefined function or variable 'm2c_ratio_to_be_tested_KeyPressFcn'.

Error in gui_mainfcn (line 95)
        feval(varargin{:});

Error in GUIWITP (line 65)
    gui_mainfcn(gui_State, varargin{:});

Error in
matlab.graphics.internal.figfile.FigFile/read>@(hObject,eventdata)GUIWITP('m2c_ratio_to_be_tested_KeyPressFcn',hObject,eventdata,guidata(hObject)) 
Error while evaluating UIControl KeyPressFcn.

Undefined function or variable 'm2c_ratio_to_be_tested_KeyPressFcn'.

Error in gui_mainfcn (line 95)
        feval(varargin{:});

Error in GUIWITP (line 65)
    gui_mainfcn(gui_State, varargin{:});

Error in
matlab.graphics.internal.figfile.FigFile/read>@(hObject,eventdata)GUIWITP('m2c_ratio_to_be_tested_KeyPressFcn',hObject,eventdata,guidata(hObject)) 
Error while evaluating UIControl KeyPressFcn.

[Walter Roberson]

This is a bit more difficult. In the other questions, above, the circumstances were that the missing functionality could be pretty much ignored, just putting in code that did nothing. However, in your situation, the missing functionality is a key press callback that you are actively using. You will need to write an appropriate m2c_ratio_to_be_tested_KeyPressFcn function.

It is possible that you already have a suitable function, that you simply renamed without going through the steps to tell GUIDE about the change. If that is the situation, then you either need to rename the function back, or you need to create a new function m2c_ratio_to_be_tested_KeyPressFcn that calls the correct function, such as

function m2c_ratio_to_be_tested_KeyPressFcn(varargin)
  m2c_rat_KeyPressFcn(varargin{:});

if m2c_rat_KeyPressFcn were the new name of m2c_ratio_to_be_tested_KeyPressFcn

[thetko kokyaw]

i have same problem .

Error in gui_mainfcn (line 264)
      feval(gui_State.gui_OutputFcn, gui_hFigure, [], gui_Handles);

Error in testing (line 42) gui_mainfcn(gui_State, varargin{:});

[Rungkiat Phatthanatapong]

Can you help me fix this problem ?

I am using ARTE

Error in drawrobot3d (line 173)
        pieza_dibujar = robot.piece{i};

Error in teach>pushbutton_refresh_Callback (line 2911)
drawrobot3d(robot, robot.q)

Error in gui_mainfcn (line 95)
        feval(varargin{:});

Error in teach (line 68)
    gui_mainfcn(gui_State, varargin{:});

Error in
@(hObject,eventdata)teach('pushbutton_refresh_Callback',hObject,eventdata,guidata(hObject))

Error while evaluating uicontrol Callback

[Walter Roberson]

This appears to relate to http://arvc.umh.es/arte/index_en.html

We need a more complete error message, everything in red, and an outline of what you were doing at the time.

Answer 5

[mohamed mohsen]

Error in gui_mainfcn (line 95)
        feval(varargin{:});

Error in videodct (line 45)
    gui_mainfcn(gui_State, varargin{:});

Error while evaluating UIControl Callback.

[Walter Roberson]

At the command line command

dbstop if error

and then run your program. When it stops at that line 95, show us the content of the variable varargin

[mohamed mohsen]

Error using VideoReader/set
Invalid input argument type to 'set'.  Type 'help set' for options.

Error in VideoReader (line 176)
                set(obj, varargin{:});

Error in videodct>compression_Callback (line 127)
    frm(i)=VideoReader(filename,i);         % read the Video file

Error in gui_mainfcn (line 95)
        feval(varargin{:});

Error in videodct (line 45)
    gui_mainfcn(gui_State, varargin{:});

176                 set(obj, varargin{:})

[mohamed mohsen]

this is the whole code

gui_Singleton = 1;
gui_State = struct('gui_Name',       mfilename, ...
                   'gui_Singleton',  gui_Singleton, ...
                   'gui_OpeningFcn', @videodct_OpeningFcn, ...
                   'gui_OutputFcn',  @videodct_OutputFcn, ...
                   'gui_LayoutFcn',  [] , ...
                   'gui_Callback',   []);
if nargin & isstr(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 videodct is made visible.
function videodct_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 videodct (see VARARGIN)

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

% Update handles structure
guidata(hObject, handles);

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

% --- Outputs from this function are returned to the command line.
function varargout = videodct_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 browse.
function browse_Callback(hObject, eventdata, handles)
% hObject    handle to browse (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
[filename, pathname] = uigetfile('*.avi', 'Pick an videodct-file');
    if isequal(filename,0) | isequal(pathname,0)
      warndlg('Image is not selected');
    else
 a=VideoReader(filename);
%  axes(handles.one);
%  movie(a);
 handles.filename=filename;
 guidata(hObject, handles);
    end

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

[filename, pathname] = uigetfile('*.avi', 'Pick an videodct-file');
    if isequal(filename,0) | isequal(pathname,0)
      warndlg('Image is not selected');
    else
 a=VideoReader(filename);
 axes(handles.one);
 movie(a);
end
% --- Executes on button press in compression.
function compression_Callback(hObject, eventdata, handles)
% hObject    handle to compression (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
filename=handles.filename;
str1='frame';
str2='.bmp';

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%frame seperation

q=2; %%%%%%%%%%%%%%%%quantization value
file=aviinfo(filename); % to get inforamtaion abt videodct file
frm_cnt=file.NumFrames          % No.of frames in the videodct file  
handles.frm_cnt=frm_cnt;
    h = waitbar(0,'Please wait...');
for i=1:frm_cnt
    frm(i)=VideoReader(filename,i);         % read the Video file
    frm_name=frame2im(frm(i));      % Convert Frame to image file
    filename1=strcat(strcat(num2str(i)),str2);
    imwrite(frm_name,filename1);      % Write image file  
     waitbar(i/frm_cnt,h)
end
 close(h)
 guidata(hObject, handles);
helpdlg('Frame seperation is Completed');   

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
Bitstream=[];
Bitstream1=[];
j1=1;
 h = waitbar(0,'Encoding...');
for i=1:10
 filename_1=strcat(strcat(num2str(i)),str2);%%%%%%%%%%%%%%form filename

   Image1=imread(filename_1);
   Image1=imresize(Image1,[256,256]); % resize for wavelet

%  Input_filesize=r_1*c_1*10;
 Image1=rgb2gray(Image1); %%%%%%%%%convert to gray
  [r_1 c_1]=size(Image1);
 Input_filesize=r_1*c_1*10;
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%threee level wavelet decomposition
 dec = myDCT(Image1);
%   dec= one(Image1);
  %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%threee level wavelet decomposition 

    waitbar(i/frm_cnt,h)
    [r c]=size(dec);         % to find rows and columns for wavelet decomposition
    DD=r*c;
    %%%%%%%%%%%%%%%%%%%%%%%%%%apply uniform quantization
      for ii=1:r
      for jj=1:c
          m1(ii,jj)=dec(ii,jj)/q;
      end
      end
      %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
   m1=round(m1);

%  Bits=toZigzag(m1)

Bits=reshape(m1,[DD 1]); %%%%%%%%%%convert matrix into an array form
% Bits=abs(Bits);

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%huffman encoder
Level=8;
Speed=0;
xC=cell(1,1);
xC{1}=Bits;
% xC{2}=mm;

[y, Res]=Huff06(xC, Level, Speed);

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%%%%%%%%%%%%%%%%%%store it in a bit stream
Bitstream{j1}=y;
cc=length(y);
% cc=cc;
dd=cc;
Bitstream1(j1)= dd;
j1=j1+1;

end
Compresed_file_size=sum(Bitstream1)
Compresed_file_size=Compresed_file_size;
 close(h)
 Comp_RATIO= Input_filesize/Compresed_file_size;
 save Comp_RATIO Comp_RATIO;
 %%%%%%%%%%%%%%%%%%%%%%%%%%save bitstream
   save Bitstream;
% --- Executes on button press in decompression.

function decompression_Callback(hObject, eventdata, handles)
% hObject    handle to decompression (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)

% for i=1:1
%  filename1=strcat(strcat(num2str(i)),str2);

%%%%%%%%%%%%%%%%%%%%%%%%%%load bitstream
 load Bitstream;
 q=2; %%%%%%%%%%%%%%%%quantization value
 A2='.bmp';
 [r2 c2]=size(Bitstream);%%%%%%%%%%%%%%%%find the size of the bitstream
 Length=c2;
  h = waitbar(0,'Decoding......');
  %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%huffman decoder
 for i=1:10
     A1=num2str(i);
y= Bitstream{i}
 xR=Huff06(y);
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
b=xR{1};

% Bits1=invZigzag(b)

Bits1=reshape(b,[256 256]);  %%%%%%%%%%%%covert into matrix

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%apply inverse quantization
    for ii=1:256
        for jj=1:256
        m1(ii,jj)=Bits1(ii,jj)*q;
        end
    end
    %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 bits=m1;
 %%%%%%%%%%%%%%%%%%%%%%%apply inverse wavelet 
%  aa=oner(bits);

   aa = myIDCT(bits)
    waitbar(i/Length,h)
    %%%%%%%%%%%%%%%%%%%%%%%%%%form a output file name
   filename=strcat(A1,A2);
  %  figure;
  %%%%%%%%%%%%%%%%%%%%%%%%%%%change the directory for output
   cd ('C:\video\outputdct');
   aa=uint8(aa);
   aa=imresize(aa,[232 232]); %%%%%%%%%%%resize into original file
   imwrite(aa,filename); %%%%%%%%%%%%%%store it as an image
  %  imshow(aa,[]);
   cd ('C:\video')
  end
   close(h)

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%convert frame to movies
% frm_cnt=handles.frm_cnt;
 frm_cnt=10;
number_of_frames=frm_cnt;
filetype='.bmp';
display_time_of_frame=1;
 cd ('C:\video\outputdct');
Movie_from_frames(filetype,number_of_frames,display_time_of_frame)
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
cd ('C:\video');
%%%%%%%%%%%%%%%%%%%%%%%%to find psnr
% cd ('C:\videodct');
% a=imread('1.bmp');%%%%%%%%%%%read the input image
% a=imresize(a,[256,256]);
% Input= a;
% Input=double(Input);
% 
% cd ('C:\videodct\output');
% b=imread('1.bmp'); %%%%%%%%%%%%%%%%read the output image
% b=imresize(b,[256,256]);
% output=b;
% output=double(output);
% n=size(Input);
% M=n(1);
% N=n(2);
% cd ('C:\videodct');
% % output=imresize(output,[M N]);
% %%%%%%%%%%%%%%%%%%%calcilate mean square error
% MSE = sum(sum((Input-output).^2))/(M*N);
% fprintf('\nMSE: %7.2f ', MSE);
% PSNR = 10*log10(255*255/MSE);
% PSNR=num2str(PSNR); %%%%%%%%%%%%%%%%%%calculate psnr
% % fprintf('\nMSE: %7.2f ', PSNR);
% set(handles.PSNR,'String',PSNR);
% 
% cd ('C:\videodct');

% --- Executes on button press in clear.
function clear_Callback(hObject, eventdata, handles)
% hObject    handle to clear (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
delete *.bmp;
warndlg('Files cleared successfully');

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

% --- Executes on button press in pushbutton7.
function pushbutton7_Callback(hObject, eventdata, handles)
% hObject    handle to pushbutton7 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)

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

load Comp_RATIO;
cd ('C:\video');
a=imread('1.bmp');%%%%%%%%%%%read the input image
a=rgb2gray(a);
a=imresize(a,[256,256]);
Input= a;
Input=double(Input);

cd ('C:\video\outputdct');
b=imread('1.bmp'); %%%%%%%%%%%%%%%%read the output image
b=imresize(b,[256,256]);
output=b;
output=double(output);
n=size(Input);
M=n(1);
N=n(2);
cd ('C:\video');
% output=imresize(output,[M N]);
%%%%%%%%%%%%%%%%%%%calcilate mean square error
MSE = sum(sum((Input-output).^2))/(M*N);
fprintf('\nMSE: %7.2f ', MSE);
PSNR = 10*log10(255*255/MSE);
PSNR=num2str(PSNR); %%%%%%%%%%%%%%%%%%calculate psnr
% fprintf('\nMSE: %7.2f ', PSNR);
set(handles.PSNR,'String',PSNR);
Comp_RATIO=num2str(Comp_RATIO);
set(handles.cr,'String',Comp_RATIO);
cd ('C:\video');

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

guidemo

[Walter Roberson]

You are trying to pass a frame number into VideoReader(). VideoReader() is not the correct routine to read in a particular frame. You should change your code from

for i=1:frm_cnt
    frm(i)=VideoReader(filename,i);         % read the Video file
    frm_name=frame2im(frm(i));      % Convert Frame to image file
    filename1=strcat(strcat(num2str(i)),str2);
    imwrite(frm_name,filename1);      % Write image file  
     waitbar(i/frm_cnt,h)
end

to instead be

vid = VideoReader(filename);

for i=1:frm_cnt
    frm_name=readFrame(vid);         % read the Video file
    filename1=strcat(strcat(num2str(i)),str2);
    imwrite(frm_name,filename1);      % Write image file  
     waitbar(i/frm_cnt,h)
end
clear vid

However, I warn you that the frame count returned by aviinfo is usually incorrect if the video is Variable Frame Rate (which most videos are these days.) You would be better off ignoring what aviinfo tells you are the number of frames, and instead use

vid = VideoReader(filename);
i = 0;
while hasFrame(vid)
    frm_name=readFrame(vid);         % read the Video file
    i = i + 1;
    filename1=strcat(strcat(num2str(i)),str2);
    imwrite(frm_name,filename1);      % Write image file  
     waitbar(i/frm_cnt,h)
end
clear vid

[mohamed mohsen]

after I add the code it worked but I had another problem

 HL1=hufflen(Hi1);HL2=hufflen(Hi2);
Interrupt while evaluating DestroyedObject Callback.

[Walter Roberson]

That code does not appear to exist in what you posted.

Answer 6

[satuk Uckus]

I'm taking this error. how ı can fix it?

Error using GUI_MECWHEEL>pushbutton1_Callback (line 362) Error due to multiple causes.

Error in gui_mainfcn (line 95) feval(varargin{:});

Error in GUI_MECWHEEL (line 42) gui_mainfcn(gui_State, varargin{:});

Error in @(hObject,eventdata)GUI_MECWHEEL('pushbutton1_Callback',hObject,eventdata,guidata(hObject))

Caused by: Error using GUI_MECWHEEL>pushbutton1_Callback (line 362) Invalid setting in 'WMR_Project_sim_2013GUI/Constant4' for parameter 'Value'. Error using GUI_MECWHEEL>pushbutton1_Callback (line 362) Error evaluating parameter 'Value' in 'WMR_Project_sim_2013GUI/Constant4' Error using GUI_MECWHEEL>pushbutton1_Callback (line 362) Not enough input arguments. Error using GUI_MECWHEEL>pushbutton1_Callback (line 362) Invalid setting in 'WMR_Project_sim_2013GUI/Constant5' for parameter 'Value'. Error using GUI_MECWHEEL>pushbutton1_Callback (line 362) Error evaluating parameter 'Value' in 'WMR_Project_sim_2013GUI/Constant5' Error using GUI_MECWHEEL>pushbutton1_Callback (line 362) Undefined function or variable 'b'. Error using GUI_MECWHEEL>pushbutton1_Callback (line 362) Invalid setting in 'WMR_Project_sim_2013GUI/Constant7' for parameter 'Value'. Error using GUI_MECWHEEL>pushbutton1_Callback (line 362) Error evaluating parameter 'Value' in 'WMR_Project_sim_2013GUI/Constant7' Error using GUI_MECWHEEL>pushbutton1_Callback (line 362) Undefined function or variable 'r'. Error using GUI_MECWHEEL>pushbutton1_Callback (line 362) Invalid setting in 'WMR_Project_sim_2013GUI/Integrator1' for parameter 'InitialCondition'. Error using GUI_MECWHEEL>pushbutton1_Callback (line 362) Error evaluating parameter 'InitialCondition' in 'WMR_Project_sim_2013GUI/Integrator1' Error using GUI_MECWHEEL>pushbutton1_Callback (line 362) Undefined function or variable 'Xs'. Error using GUI_MECWHEEL>pushbutton1_Callback (line 362) Invalid setting in 'WMR_Project_sim_2013GUI/Integrator5' for parameter 'InitialCondition'. Error using GUI_MECWHEEL>pushbutton1_Callback (line 362) Error evaluating parameter 'InitialCondition' in 'WMR_Project_sim_2013GUI/Integrator5' Error using GUI_MECWHEEL>pushbutton1_Callback (line 362) Undefined function or variable 'th_in'.

Error while evaluating UIControl Callback

[Walter Roberson]

Do you have pushbutton1_Callback invoking sim()? If you are, then you are invoking a Simulink model that relies on some values being present in the workspace of the function that calls sim(). Those might be defined as parameters or there might be From Workspace blocks.

[Walter Roberson]

The simulation needs

b
r
th_in
Xs

Your code does not define anything like b. Your code defines R with a capital R, but not lower-case r. Your code does not define anything like th_in. Your code defines Sx but not Xs

At the moment, I am not certain what is going on for WMR_Project_sim_2013GUI/Constant4 -- perhaps you left the definition of the constant empty in Simulink ?

Answer 7

[jony shill]

function varargout = gui(varargin)
% GUI MATLAB code for gui.fig
%      GUI, by itself, creates a new GUI or raises the existing
%      singleton*.
%
%      H = GUI returns the handle to a new GUI or the handle to
%      the existing singleton*.
%
%      GUI('CALLBACK',hObject,eventData,handles,...) calls the local
%      function named CALLBACK in GUI.M with the given input arguments.
%
%      GUI('Property','Value',...) creates a new GUI or raises the
%      existing singleton*.  Starting from the left, property value pairs are
%      applied to the GUI before gui_OpeningFcn gets called.  An
%      unrecognized property name or invalid value makes property application
%      stop.  All inputs are passed to gui_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

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

% Last Modified by GUIDE v2.5 27-Dec-2018 10:52:34

% Begin initialization code - DO NOT EDIT
gui_Singleton = 1;
gui_State = struct('gui_Name',       mfilename, ...
                   'gui_Singleton',  gui_Singleton, ...
                   'gui_OpeningFcn', @gui_OpeningFcn, ...
                   'gui_OutputFcn',  @gui_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 gui is made visible.
function gui_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 gui (see VARARGIN)

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

% Update handles structure
guidata(hObject, handles);

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


% --- Outputs from this function are returned to the command line.
function varargout = gui_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 Load_Image.
function Load_Image_Callback(hObject, eventdata, handles)
% hObject    handle to Load_Image (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)


global im im2
[path, user_cancel] = imgetfile();
if user_cancel
    msgbox(sprintf('Invalid Selection'),'Error','Error');
    return
end
im = imread(path);
im = im2double(im);
im2 = im;
axes(handle.axes1);
imshow(im);
title('\fontsize(18)\color[rgb]{0.635 0.078 0.184} Patient''s Tooth')

% --- Executes on button press in Detected.
function Detected_Callback(hObject, eventdata, handles)
% hObject    handle to Detected (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
global im
axes(handle.axes2);  

wd=256;
Input=imresize(a,[256 256]);
figure(1),subplot(1,3,1),imshow(Input);
[r c p]   = size(Input);
if p==3
Input= Input(:,:,2);
figure(1),subplot(1,3,2),imshow(Input);
Input = imadjust(Input,[0.4 0.8],[]);
figure(1),subplot(1,3,3),imshow(Input);
end


Input   =double(Input);
Length = (r*c); 
Dataset = reshape(Input,[Length,1]);
Clusters=5; %k CLUSTERS
Cluster1=zeros(Length,1);
Cluster2=zeros(Length,1);
Cluster3=zeros(Length,1);
Cluster4=zeros(Length,1);
Cluster5=zeros(Length,1);
miniv = min(min(Input));
maxiv = max(max(Input));
range = maxiv - miniv;
stepv = range/Clusters;
incrval = stepv;
for i = 1:Clusters
    K(i).centroid = incrval;
    incrval = incrval + stepv;
end

update1=0;
update2=0;
update3=0;
update4=0;
update5=0;

mean1=2;
mean2=2;
mean3=2;
mean4=2;
mean5=2;

while  ((mean1 ~= update1) & (mean2 ~= update2) & (mean3 ~= update3) & (mean4 ~= update4) & (mean5 ~= update5))

mean1=K(1).centroid;
mean2=K(2).centroid;
mean3=K(3).centroid;
mean4=K(4).centroid;
mean5=K(5).centroid;

for i=1:Length
    for j = 1:Clusters
        temp= Dataset(i);
        difference(j) = abs(temp-K(j).centroid);
       
    end
    [y,ind]=min(difference);
    
  if ind==1
    Cluster1(i)   =temp;
end
if ind==2
    Cluster2(i)   =temp;
end
if ind==3
    Cluster3(i)   =temp;
end
end

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

%UPDATE CENTROIDS
cout1=0;
cout2=0;
cout3=0;
cout4=0;
cout5=0;

for i=1:Length
    Load1=Cluster1(i);
    Load2=Cluster2(i);
    Load3=Cluster3(i);
    Load4=Cluster4(i);
    Load5=Cluster5(i);
    
    if Load1 ~= 0
        cout1=cout1+1;
    end
    
    if Load2 ~= 0
        cout2=cout2+1;
    end
%     
    if Load3 ~= 0
        cout3=cout3+1;
    end
    
    if Load4 ~= 0
        cout4=cout4+1;
    end
    
    if Load5 ~= 0
        cout5=cout5+1;
    end
end

Mean_Cluster(1)=sum(Cluster1)/cout1;
Mean_Cluster(2)=sum(Cluster2)/cout2;
Mean_Cluster(3)=sum(Cluster3)/cout3;
Mean_Cluster(4)=sum(Cluster4)/cout4;
Mean_Cluster(5)=sum(Cluster5)/cout5;
%reload
for i = 1:Clusters
    K(i).centroid = Mean_Cluster(i);
end
update1=K(1).centroid;
update2=K(2).centroid;
update3=K(3).centroid;                                  
update4=K(4).centroid;
update5=K(5).centroid;

end

AA1=reshape(Cluster1,[wd wd]);
AA2=reshape(Cluster2,[wd wd]);
AA3=reshape(Cluster3,[wd wd]);
AA4=reshape(Cluster4,[wd wd]);
AA5=reshape(Cluster5,[wd wd]);


figure(3),subplot(2,3,1),imshow(AA1);
subplot(2,3,2),imshow(AA2);
subplot(2,3,3),imshow(AA3);
subplot(2,3,4),imshow(AA4);
subplot(2,3,5),imshow(AA5);
a=AA5;
figure(4),subplot(1,3,1),imshow(a);
a1=im2bw(a);
subplot(1,3,2),imshow(a1);
hold on
mask = false(size(a1));
mask(50:150,40:20) = true;
visboundaries(mask,'Color','b');
bw2 = activecontour(a1, mask, 200, 'edge');
visboundaries(bw2,'Color','r'); 
title('Initial contour (blue) and final contour (red)');

Trial License -- for use to evaluate programs for possible purchase as an end-user only.

>> gui

The class handle has no Constant property or Static method named 'axes1'.

Error in gui>Load_Image_Callback (line 92)

axes(handle.axes1);

Error in gui_mainfcn (line 95)

feval(varargin{:});

Error in gui (line 42)

gui_mainfcn(gui_State, varargin{:});

Error in

matlab.graphics.internal.figfile.FigFile/read>@(hObject,eventdata)gui('Load_Image_Callback',hObject,eventdata,guidata(hObject))

Error while evaluating UIControl Callback.

[Walter Roberson]

axes(handle.axes1); should be axes(handles.axes1);

[HEMANGI NALE]

Below is my error. i tried fixing everything but its not working.please help.

Undefined function or variable 'hObject'.

Error in newLCD>original_Callback (line 87)

guidata(hObject,handles);

Error in gui_mainfcn (line 95)

feval(varargin{:});

Error in newLCD (line 42)

gui_mainfcn(gui_State, varargin{:});

Error in

matlab.graphics.internal.figfile.FigFile/read>@(hObject,eventdata)newLCD('original_Callback',hObject,eventdata,guidata(hObject))

Error while evaluating UIControl Callback.

[Walter Roberson]

You have not posted the code for original_Callback

[HEMANGI NALE]

function original_Callback(~, ~, handles)
% hObject    handle to original (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
axes(handles.axes1);
path = 'c:\users\Hemangi nale';
filter = '*.jpg';
im = uigetfile(fullfile(path , filter));
imshow(im)

[Walter Roberson]

That code does not contain a guidata call.

You need to replace the first ~ of the function definition of that callback with hObject

[HEMANGI NALE]

thank you so much. now my code is working.

Answer 8

[suoh mikoto]

I have same problem, help me.

Error using RGB>pushbutton1_Callback (line 84)
Dimensions of matrices being concatenated are not consistent.

Error in gui_mainfcn (line 95)
        feval(varargin{:});

Error in RGB (line 42)
    gui_mainfcn(gui_State, varargin{:});

Error in
matlab.graphics.internal.figfile.FigFile/read>@(hObject,eventdata)RGB('pushbutton1_Callback',hObject,eventdata,guidata(hObject)) 
Error while evaluating UIControl Callback

[Walter Roberson]

We need to see the code for pushbutton1_Callback

[suoh mikoto]

here...

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)


[nama_file1, nama_path1] = uigetfile(...
    {'*.jpg; *.png, file  citra(*.jpg; *.png)';
    '*.jpg','File Jpg (*.jpg)';...
    '*.png','File png (*.png)';
    '*.*', 'Semua File (*.*)'},...
    'Buka Citra Asli');
if ~isequal (nama_file1, 0);
    handles.data1=imread(fullfile(nama_path1, nama_file1));
    guidata(hObject, handles);
    handles.current_data1=handles.data1;
    axes(handles.axes1)
    imshow(handles.current_data1);
else
    return
end

red=mean(mean(handles.current_data1(:,:,1)));
green=mean(mean(handles.current_data1(:,:,2)));
blue=mean(mean(handles.current_data1(:,:,3)));

set(handles.edit1,'string',red);
set(handles.edit2,'string',green);
set(handles.edit3,'string',blue);

[Walter Roberson]

Your cell array for uigetfile has one column in the first row but 2 columns in the other rows.

[suoh mikoto]

solved, thank you su much

Answer 9

[Momen Elhassan]

I have the same problem and only thing I've learned after browsing for so long is that the cause is the same in most cases, but no singular solution as far as I can tell. I've been searching the web for days trying to fix it to no avail.

The 'myecg' variable is an imported one that I had ready. I tried renaming it but that didn't work either.

Undefined function or variable 'myecg'.

Error in CEN320Project>pushbutton1_Callback (line 81)
y=myecg;

Error in gui_mainfcn (line 95)
        feval(varargin{:});

Error in CEN320Project (line 42)
    gui_mainfcn(gui_State, varargin{:});

Error in
matlab.graphics.internal.figfile.FigFile/read>@(hObject,eventdata)CEN320Project('pushbutton1_Callback',hObject,eventdata,guidata(hObject)) 
Error while evaluating UIControl Callback.

[Walter Roberson]

myecg appears to be defined in note 53 of https://docplayer.net/82395340-Amplifiers-class-a-b-ab-d-op-amp-application-ecg.html

[Momen Elhassan]

Now it says undefined variable 'N' even though I did define it as the value inside the editbox using the "str2double" command.

and the feval varargin error still shows up .

If it's not too much trouble. This is my entire program, It's fairly simple I think.

function varargout = CEN320Project(varargin)
% CEN320PROJECT MATLAB code for CEN320Project.fig
%      CEN320PROJECT, by itself, creates a new CEN320PROJECT or raises the existing
%      singleton*.
%
%      H = CEN320PROJECT returns the handle to a new CEN320PROJECT or the handle to
%      the existing singleton*.
%
%      CEN320PROJECT('CALLBACK',hObject,eventData,handles,...) calls the local
%      function named CALLBACK in CEN320PROJECT.M with the given input arguments.
%
%      CEN320PROJECT('Property','Value',...) creates a new CEN320PROJECT or raises the
%      existing singleton*.  Starting from the left, property value pairs are
%      applied to the GUI before CEN320Project_OpeningFcn gets called.  An
%      unrecognized property name or invalid value makes property application
%      stop.  All inputs are passed to CEN320Project_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

% Edit the above text to modify the response to help CEN320Project

% Last Modified by GUIDE v2.5 03-Dec-2019 02:50:00

% Begin initialization code - DO NOT EDIT
gui_Singleton = 1;
gui_State = struct('gui_Name',       mfilename, ...
                   'gui_Singleton',  gui_Singleton, ...
                   'gui_OpeningFcn', @CEN320Project_OpeningFcn, ...
                   'gui_OutputFcn',  @CEN320Project_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 CEN320Project is made visible.
function CEN320Project_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 CEN320Project (see VARARGIN)

% Choose default command line output for CEN320Project
handles.output = hObject;

% Update handles structure
guidata(hObject, handles);

% UIWAIT makes CEN320Project wait for user response (see UIRESUME)
% uiwait(handles.figure1);


% --- Outputs from this function are returned to the command line.
function varargout = CEN320Project_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)
recObj = audiorecorder(1000,16, 1);  
record_time = 5;
disp('Start ECG.')
recordblocking(recObj, record_time);
disp('End of Recording.');
myECG = getaudiodata(recObj);
save('mydata')
y=myECG
Y=fft(myECG); 
mag=abs(Y);
fs=500;
ecg=y(); 
for k=1:N
ang(k) = inv(tan(imag(Y(k))/real(Y(k))*pi/180));
end
sum=0;
t=0:0.01:N;
for h=1:N
sum=sum+Y(h)*exp(1i*2*pi*(500/N)*t);
end



axes(handles.axes1)
plot(myECG)
title('ECG Signal')
xlabel('t')
ylabel('Amplitude')
grid on
axes(handles.axes2)
plot(mag)
title('Magnitude Spectrum')
xlabel('n')
ylabel('Magnitude')
grid on
axes(handles.axes3)
plot(ang)
title('Phase Spectrum')
xlabel('n')
ylabel('Angle')
grid on

function edit1_Callback(edit1, eventdata, handles)
% hObject    handle to edit1 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
N=str2double(get(edit1,'string'));
assignin('base','N',str2double(get(edit1,'string')));
% Hints: get(hObject,'String') returns contents of edit1 as text
%        str2double(get(hObject,'String')) returns contents of edit1 as a double


% --- Executes during object creation, after setting all properties.
function edit1_CreateFcn(edit1, eventdata, handles)
% hObject    handle to edit1 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    empty - handles not created until after all CreateFcns called

% Hint: edit controls usually have a white background on Windows.
%       See ISPC and COMPUTER.
if ispc && isequal(get(edit1,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor'))
    set(edit1,'BackgroundColor','white');
end



function edit2_Callback(edit2, eventdata, handles)
% hObject    handle to edit2 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
time=str2double(get(edit2,'string'));
assignin('base','time',str2double(get(edit2,'string')));
% Hints: get(hObject,'String') returns contents of edit2 as text
%        str2double(get(hObject,'String')) returns contents of edit2 as a double


% --- Executes during object creation, after setting all properties.
function edit2_CreateFcn(edit2, eventdata, handles)
% hObject    handle to edit2 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    empty - handles not created until after all CreateFcns called

% Hint: edit controls usually have a white background on Windows.
%       See ISPC and COMPUTER.
if ispc && isequal(get(edit2,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor'))
    set(edit2,'BackgroundColor','white');
end

and this is my error.

Undefined function or variable 'N'.

Error in CEN320Project>pushbutton1_Callback (line 93)
for k=1:N

Error in gui_mainfcn (line 95)
        feval(varargin{:});

Error in CEN320Project (line 42)
    gui_mainfcn(gui_State, varargin{:});

Error in
matlab.graphics.internal.figfile.FigFile/read>@(hObject,eventdata)CEN320Project('pushbutton1_Callback',hObject,eventdata,guidata(hObject)) 
Error while evaluating UIControl Callback.

[Walter Roberson]

You use

assignin('base','N',str2double(get(edit1,'string')));

so you are storing the value in the base workspace.

for k=1:N

But there you are expecting the variable N to just exist in the workspace of that function, without having retrieved its value from anywhere.

http://matlab.wikia.com/wiki/FAQ#How_can_I_share_data_between_callback_functions_in_my_GUI.28s.29.3F

[Momen Elhassan]

That solved the undefined value problem! Thanks!

Turns out all the operations my pushbuttons executes are undefined because they are all 'struct' type input arguments. My entire program is one giant mistake apparently ...

[Nguyen]

please help I am facing same kind of error

function varargout = ONOFFLED(varargin)
% ONOFFLED MATLAB code for ONOFFLED.fig
%      ONOFFLED, by itself, creates a new ONOFFLED or raises the existing
%      singleton*.
%
%      H = ONOFFLED returns the handle to a new ONOFFLED or the handle to
%      the existing singleton*.
%
%      ONOFFLED('CALLBACK',hObject,eventData,handles,...) calls the local
%      function named CALLBACK in ONOFFLED.M with the given input arguments.
%
%      ONOFFLED('Property','Value',...) creates a new ONOFFLED or raises the
%      existing singleton*.  Starting from the left, property value pairs are
%      applied to the GUI before ONOFFLED_OpeningFcn gets called.  An
%      unrecognized property name or invalid value makes property application
%      stop.  All inputs are passed to ONOFFLED_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

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

% Last Modified by GUIDE v2.5 03-Oct-2022 17:09:03

% Begin initialization code - DO NOT EDIT
gui_Singleton = 1;
gui_State = struct('gui_Name',       mfilename, ...
    'gui_Singleton',  gui_Singleton, ...
    'gui_OpeningFcn', @ONOFFLED_OpeningFcn, ...
    'gui_OutputFcn',  @ONOFFLED_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 ONOFFLED is made visible.
function ONOFFLED_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 ONOFFLED (see VARARGIN)

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

% Update handles structure
guidata(hObject, handles);

% UIWAIT makes ONOFFLED wait for user response (see UIRESUME)
% uiwait(handles.figure1);
delete(instrfind({'port'},{'COM11'}));
clear all;
global a;
a = arduino('COM11','Uno');
configurePin(a,'D12','DigitalOutput');




% --- Outputs from this function are returned to the command line.
function varargout = ONOFFLED_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 OFF.
function OFF_Callback(hObject, eventdata, handles)
% hObject    handle to OFF (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
global a;
writeDigitalPin(a,'D4',0);
% --- Executes on button press in ON.
function ON_Callback(hObject, eventdata, handles)
% hObject    handle to ON (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
global a;
b=str2num(get(handles.time,'String'));
writeDigitalPin(a,'D4',1);
pause(b);
writeDigitalPin(a,'D4',0);



function time_Callback(hObject, eventdata, handles)
% hObject    handle to time (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)

% Hints: get(hObject,'String') returns contents of time as text
%        str2double(get(hObject,'String')) returns contents of time as a double


% --- Executes during object creation, after setting all properties.
function time_CreateFcn(hObject, eventdata, handles)
% hObject    handle to time (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    empty - handles not created until after all CreateFcns called

% Hint: edit controls usually have a white background on Windows.
%       See ISPC and COMPUTER.
if ispc && isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor'))
    set(hObject,'BackgroundColor','white');
end

[Image Analyst]

@Nguyen you'd need to attach both the .m file and .fig file.

And same problem as who? There are tons of people and code posted in this thread. Anyway, even better is to just describe your problem, or even better, just start your own thread rather than bury/hide it here a 7 year old thread.

TUTORIAL: How to ask a question (on Answers) and get a fast answer

[Rik]

You're using clear all and a global variable (with an extremely short name) in your function. Did you do a basic Matlab tutorial? You should be using neither.

[Nguyen]

i'm sorry:

This is my prolem:

feval(gui_State.gui_OpeningFcn, gui_hFigure, [], guidata(gui_hFigure), varargin{:});

Error in CONTROLCVCC (line 42)

gui_mainfcn(gui_State, varargin{:});

[Image Analyst]

Did you not see my comment (3 above) where I asked for the .m and .fig files to be attached? Click the "show hidden comments" link to see all the comments instead of only the very last one.

[Nguyen]

please help me

This is my file

thank you so much!

[Rik]

We are helping you. Ask a separate question after reading what Image Analyst linked you. You should also consider doing the Onramp tutorial, which is offered for free by Mathworks.

[Walter Roberson]

using clear all in the middle of the program is like yanking out the chair you are standing on... together with the floor the chair is on, and the building that the floor is in, and the hill that the building is on, and the planet that the hill is on... and the sun that the planet orbits, and the local cluster that the sun is part of... and the galaxy that the local cluster is part of... and then hoping that the residual vacuum energy will still hold you up.

Answer 10

[keith marcenaro]

When I run the below .m file, it gives me the following error: helpme

Error using  + 
Matrix dimensions must agree.

Error in programacion1>pushbutton13_Callback (line 698)
segaltpiedesconoc=cotaaltpiedesconoc+presionaltpiedesconoc;

Error in gui_mainfcn (line 95)
        feval(varargin{:});

Error in programacion1 (line 47)
    gui_mainfcn(gui_State, varargin{:});

Error in
matlab.graphics.internal.figfile.FigFile/read>@(hObject,eventdata)programacion1('pushbutton13_Callback',hObject,eventdata,guidata(hObject)) 
Error while evaluating UIControl Callback.

[Walter Roberson]

The .m file was not attached. Also it looks like we would need the .fig as well to execute the program.

[Walter Roberson]

Also you should be creating a new Question for this.

Answer 11

[Ganesh Pakanati]

Images for Undefined function 'imoverlay' for input arguments of type 'uint8'. Error in untitled1>pushbutton2_Callback (line 144) overlay1 = imoverlay(I,bw_perim, [.3 1 .3]); Error in gui_mainfcn (line 95) feval(varargin{:}); Error in untitled1 (line 42) gui_mainfcn(gui_State, varargin{:}); Error in @(hObject,eventdata)untitled1('pushbutton2_Callback',hObject,eventdata,guidata(hObject)) Error while evaluating UIControl Callback

i have got an error by the code

[Walter Roberson]

Either you do not have the Image Processing Toolbox installed (or licensed), or else you are using a MATLAB release before R2016a. I suspect you are using a MATLAB too old for imoverlay()

Answer 12

[Iuliana Vlad]

Same Error.

Error in VladIuliana>calculeaza_Callback (line 876) [V1,m1,J1]=Ans2(((a3/2)/1000),(b2/1000),c2,0);

Error in gui_mainfcn (line 95) feval(varargin{:});

Error in VladIuliana (line 42) gui_mainfcn(gui_State, varargin{:});

Error in matlab.graphics.internal.figfile.FigFile/read>@(hObject,eventdata)VladIuliana('calculeaza_Callback',hObject,eventdata,guidata(hObject)) Error while evaluating UIControl Callback.

Answer 13

[arvin]

Error using imread (line 349)

File "./sample/1.tiff" does not exist.

Error in CreateDatabase (line 20)

I = (imread(strcat('./sample/',TrainFiles(i).name)));

Error in MAIN_GUI_EMOTION>pushbutton2_Callback (line 143)

CreateDatabase(TrainDatabasePath);

Error in gui_mainfcn (line 95)

feval(varargin{:});

Error in MAIN_GUI_EMOTION (line 42)

gui_mainfcn(gui_State, varargin{:});

Error in

matlab.graphics.internal.figfile.FigFile/read>@(hObject,eventdata)MAIN_GUI_EMOTION('pushbutton2_Callback',hObject,eventdata,guidata(hObject))

Error while evaluating UIControl Callback

[Walter Roberson]

You are not cd'd to the directory that has a sample subdirectory inside it. Do not cd to the sample directory itself, cd to the directory that contains the sample directory.

Answer 14

[BHOSALE MOHAN VILASRAO]

please help I am facing same kind of error:

Index exceeds matrix dimensions.
Error in RRR_Robot>btn_Forward_Callback (line 167)
handles.Pos_X.String = num2str(floor(T(1,4)));
Error in gui_mainfcn (line 95)
        feval(varargin{:});
Error in RRR_Robot (line 42)
    gui_mainfcn(gui_State, varargin{:});
Error in
matlab.graphics.internal.figfile.FigFile/read>@(hObject,eventdata)RRR_Robot('btn_Forward_Callback',hObject,eventdata,guidata(hObject)) 
167 handles.Pos_X.String = num2str(floor(T(1,4)));
java.lang.ClassCastException: [D cannot be cast to [Ljava.lang.Object;
	at com.mathworks.toolbox.matlab.guide.LayoutArea.duplicateComplete(LayoutArea.java:960)
	at com.mathworks.toolbox.matlab.guide.LayoutArea$DuplicateObserver.completed(LayoutArea.java:944)
	at com.mathworks.toolbox.matlab.guide.utils.LayoutWorker.runOnMatlabThread(LayoutWorker.java:55)
	at com.mathworks.jmi.MatlabWorker$2.run(MatlabWorker.java:79)
	at com.mathworks.jmi.NativeMatlab.dispatchMTRequests(NativeMatlab.java:475)
 K>> dbstop if error
 

and my code :

 function varargout = RRR_Robot(varargin)
% RRR_ROBOT MATLAB code for RRR_Robot.fig
%      RRR_ROBOT, by itself, creates a new RRR_ROBOT or raises the existing
%      singleton*.
%
%      H = RRR_ROBOT returns the handle to a new RRR_ROBOT or the handle to
%      the existing singleton*.
%
%      RRR_ROBOT('CALLBACK',hObject,eventData,handles,...) calls the local
%      function named CALLBACK in RRR_ROBOT.M with the given input arguments.
%
%      RRR_ROBOT('Property','Value',...) creates a new RRR_ROBOT or raises the
%      existing singleton*.  Starting from the left, property value pairs are
%      applied to the GUI before RRR_Robot_OpeningFcn gets called.  An
%      unrecognized property name or invalid value makes property application
%      stop.  All inputs are passed to RRR_Robot_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

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

% Last Modified by GUIDE v2.5 03-Sep-2020 17:09:35

% Begin initialization code - DO NOT EDIT
gui_Singleton = 1;
gui_State = struct('gui_Name',       mfilename, ...
                   'gui_Singleton',  gui_Singleton, ...
                   'gui_OpeningFcn', @RRR_Robot_OpeningFcn, ...
                   'gui_OutputFcn',  @RRR_Robot_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 RRR_Robot is made visible.
function RRR_Robot_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 RRR_Robot (see VARARGIN)

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

% Update handles structure
guidata(hObject, handles);

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


% --- Outputs from this function are returned to the command line.
function varargout = RRR_Robot_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;



function Theta_1_Callback(hObject, eventdata, handles)
% hObject    handle to Theta_1 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)

% Hints: get(hObject,'String') returns contents of Theta_1 as text
%        str2double(get(hObject,'String')) returns contents of Theta_1 as a double


% --- Executes during object creation, after setting all properties.
function Theta_1_CreateFcn(hObject, eventdata, handles)
% hObject    handle to Theta_1 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    empty - handles not created until after all CreateFcns called

% Hint: edit controls usually have a white background on Windows.
%       See ISPC and COMPUTER.
if ispc && isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor'))
    set(hObject,'BackgroundColor','white');
end



function Theta_2_Callback(hObject, eventdata, handles)
% hObject    handle to Theta_2 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)

% Hints: get(hObject,'String') returns contents of Theta_2 as text
%        str2double(get(hObject,'String')) returns contents of Theta_2 as a double


% --- Executes during object creation, after setting all properties.
function Theta_2_CreateFcn(hObject, eventdata, handles)
% hObject    handle to Theta_2 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    empty - handles not created until after all CreateFcns called

% Hint: edit controls usually have a white background on Windows.
%       See ISPC and COMPUTER.
if ispc && isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor'))
    set(hObject,'BackgroundColor','white');
end



function Theta_3_Callback(hObject, eventdata, handles)
% hObject    handle to Theta_3 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)

% Hints: get(hObject,'String') returns contents of Theta_3 as text
%        str2double(get(hObject,'String')) returns contents of Theta_3 as a double


% --- Executes during object creation, after setting all properties.
function Theta_3_CreateFcn(hObject, eventdata, handles)
% hObject    handle to Theta_3 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    empty - handles not created until after all CreateFcns called

% Hint: edit controls usually have a white background on Windows.
%       See ISPC and COMPUTER.
if ispc && isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor'))
    set(hObject,'BackgroundColor','white');
end


% --- Executes on button press in btn_Forward.
function btn_Forward_Callback(hObject, eventdata, handles)
% hObject    handle to btn_Forward (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
Th_1 = str2double(handles.Theta_1.String)*pi/180;
Th_2 = str2double(handles.Theta_2.String)*pi/180;
Th_3 = str2double(handles.Theta_3.String)*pi/180;

L_1 = 20;
L_2 = 50;
L_3 = 40;

L(1) = Link([0 L_1 0 pi/2]);
L(2) = Link([0 0 L_2 0]);
L(3) = Link([0 0 L_3 0]);

Robot = SerialLink(L);
Robot.name = 'RRR_Robot';
Robot.plot([Th_1 Th_2 Th_3]);

T = Robot.fkine([Th_1 Th_2 Th_3]);
handles.Pos_X.String = num2str(floor(T(1,4)));
handles.Pos_Y.String = num2str(floor(T(2,4)));
handles.Pos_Z.String = num2str(floor(T(3,4)));

function Pos_X_Callback(hObject, eventdata, handles)
% hObject    handle to Pos_X (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)

% Hints: get(hObject,'String') returns contents of Pos_X as text
%        str2double(get(hObject,'String')) returns contents of Pos_X as a double


% --- Executes during object creation, after setting all properties.
function Pos_X_CreateFcn(hObject, eventdata, handles)
% hObject    handle to Pos_X (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    empty - handles not created until after all CreateFcns called

% Hint: edit controls usually have a white background on Windows.
%       See ISPC and COMPUTER.
if ispc && isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor'))
    set(hObject,'BackgroundColor','white');
end



function Pos_Y_Callback(hObject, eventdata, handles)
% hObject    handle to Pos_Y (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)

% Hints: get(hObject,'String') returns contents of Pos_Y as text
%        str2double(get(hObject,'String')) returns contents of Pos_Y as a double


% --- Executes during object creation, after setting all properties.
function Pos_Y_CreateFcn(hObject, eventdata, handles)
% hObject    handle to Pos_Y (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    empty - handles not created until after all CreateFcns called

% Hint: edit controls usually have a white background on Windows.
%       See ISPC and COMPUTER.
if ispc && isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor'))
    set(hObject,'BackgroundColor','white');
end



function Pos_Z_Callback(hObject, eventdata, handles)
% hObject    handle to Pos_Z (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)

% Hints: get(hObject,'String') returns contents of Pos_Z as text
%        str2double(get(hObject,'String')) returns contents of Pos_Z as a double


% --- Executes during object creation, after setting all properties.
function Pos_Z_CreateFcn(hObject, eventdata, handles)
% hObject    handle to Pos_Z (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    empty - handles not created until after all CreateFcns called

% Hint: edit controls usually have a white background on Windows.
%       See ISPC and COMPUTER.
if ispc && isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor'))
    set(hObject,'BackgroundColor','white');
end


% --- Executes on button press in btn_Inverse.
function btn_Inverse_Callback(hObject, eventdata, handles)
% hObject    handle to btn_Inverse (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
PX = str2double(handles.Pos_X.String);
PY = str2double(handles.Pos_Y.String);
PZ = str2double(handles.Pos_Z.String);

L_1 = 20;
L_2 = 50;
L_3 = 40;

L(1) = Link([0 L_1 0 pi/2]);
L(2) = Link([0 0 L_2 0]);
L(3) = Link([0 0 L_3 0]);

Robot = SerialLink(L);
Robot.name = 'RRR_Robot';

T = [ 1 0 0 PX;
      0 1 0 PY;
      0 0 1 PZ;
      0 0 0 1];
  
J = Robot.ikine(T, [0 0 0], [1 1 1 0 0 0]) * 180/pi;
handles.Theta_1.String = num2str(floor(J(1)));
handles.Theta_2.String = num2str(floor(J(2)));
handles.Theta_3.String = num2str(floor(J(3)));

Robot.plot(J*pi/180);

[Walter Roberson]

Put a breakpoint at

T = Robot.fkine([Th_1 Th_2 Th_3]);

and single-step . If you then ask to display T, what shows up?

[BHOSALE MOHAN VILASRAO]

it is giving error at handles part, the following is the result I got with breakpoint at that function.

28  gui_Singleton = 1;
K>> dbcont
166 T = Robot.fkine([Th_1 Th_2 Th_3]);
K>> dbcont
Index in position 2 exceeds array bounds (must not exceed 1).

Error in RRR_Robot>btn_Forward_Callback (line 167)
handles.Pos_X.String = num2str(floor(T(1,4)));

Error in gui_mainfcn (line 95)
        feval(varargin{:});

Error in RRR_Robot (line 42)
    gui_mainfcn(gui_State, varargin{:});