Unrecognized method, property, or field 'updateGraph' for class 'app1'.

classdef app1 < matlab.apps.AppBase

% Properties that correspond to app components

properties (Access = public)

UIFigure matlab.ui.Figure

YListBox matlab.ui.control.ListBox

YListBoxLabel matlab.ui.control.Label

XListBox matlab.ui.control.ListBox

XListBoxLabel matlab.ui.control.Label

LSpinner matlab.ui.control.Spinner

LSpinnerLabel matlab.ui.control.Label

VSBSpinner matlab.ui.control.Spinner

VSBSpinnerLabel matlab.ui.control.Label

VDSSpinner matlab.ui.control.Spinner

VDSSpinnerLabel matlab.ui.control.Label

VGSSpinner matlab.ui.control.Spinner

VGSSpinnerLabel matlab.ui.control.Label

pushButton matlab.ui.control.Button

lookupEditField matlab.ui.control.EditField

lookupEditFieldLabel matlab.ui.control.Label

nchEditField matlab.ui.control.EditField

nchEditFieldLabel matlab.ui.control.Label

importButton_3 matlab.ui.control.Button

importButton matlab.ui.control.Button

UIAxes matlab.ui.control.UIAxes

end

% New property to store file path

properties (Access = public)

str = 'FilePath' % Store the selected file path

nch % Store the lookup table or other data

end

% Callbacks that handle component events

methods (Access = private)

% Button pushed function: importButton

function importButtonPushed(app, event)

[app.nch,~]=uigetfile('*.mat','select mat file');

app.nchEditField.Value=app.nch;

figure(app.UIFigure);

end

% Value changed function: nchEditField

function nchEditFieldValueChanged(app, event)

value = app.nchEditField.Value;

end

% Button pushed function: importButton_3

function importButton_3Pushed(app, event)

[lookup,~]=uigetfile('*.m','select file');

lookupStr = char(lookup);

app.lookupEditField.Value=lookupStr;

figure(app.UIFigure);

end

% Value changed function: lookupEditField

function lookupEditFieldValueChanged(app, event)

value = app.lookupEditField.Value;

end

% Value changed function: LSpinner

function LSpinnerValueChanged(app, event)

selectedL = app.LSpinner.Value;

end

% Callback function: not associated with a component

function UIAxesButtonDown(app, event)

% Define gm_id values

gm_id = 0:0.1:50;

% Get ID_W values for the selected L

id_w = look_up(app.nch, 'ID_W', 'GM_ID', gm_id, 'L', selectedL);

% Plot ID_W against GM_ID on the UIAxes component

semilogx(app.UIAxes, (id_w)*10^6, gm_id, 'DisplayName', ['L = ', num2str(selectedL)]);

% Customize the plot

ylabel(app.UIAxes, 'g_m/I_D [S/A]');

xlabel(app.UIAxes, 'I_D/W [A/m]');

title(app.UIAxes, ['Plot for L = ', num2str(selectedL)]);

grid(app.UIAxes, 'on');

legend(app.UIAxes, 'Location', 'best');

function updateGraph(app, selectedLabel)

plot(app.UIAxes, rand(1,10)); % Example plot

title(app.UIAxes, selectedLabel);

xlabel(app.UIAxes, 'X-axis');

ylabel(app.UIAxes, 'Y-axis');

end

end

% Button pushed function: pushButton

function pushButtonPushed(app, event)

selectedLabel = app.XListBox.Value; % Assuming XListBox is used to select the label

% You can also add additional code here if needed

disp(['Graph updated for ', selectedLabel]);

end

% Value changed function: XListBox

function XListBoxValueChanged(app, event)

selectedLabel = app.XListBox.Value;

end

% Value changed function: YListBox

function YListBoxValueChanged(app, event)

selectedLabel = app.UIFigureapp.YListBox.Value;

app.updateGraph(selectedLabel);

app.UIFigure

end

end

% Component initialization

methods (Access = private)

% Create UIFigure and components

function createComponents(app)

% Create UIFigure and hide until all components are created

app.UIFigure = uifigure('Visible', 'off');

app.UIFigure.Position = [100 100 640 480];

app.UIFigure.Name = 'MATLAB App';

% Create UIAxes

app.UIAxes = uiaxes(app.UIFigure);

title(app.UIAxes, 'Title')

xlabel(app.UIAxes, 'X')

ylabel(app.UIAxes, 'Y')

zlabel(app.UIAxes, 'Z')

app.UIAxes.Position = [239 295 300 185];

% Create importButton

app.importButton = uibutton(app.UIFigure, 'push');

app.importButton.ButtonPushedFcn = createCallbackFcn(app, @importButtonPushed, true);

app.importButton.Position = [57 202 100 23];

app.importButton.Text = 'import';

% Create importButton_3

app.importButton_3 = uibutton(app.UIFigure, 'push');

app.importButton_3.ButtonPushedFcn = createCallbackFcn(app, @importButton_3Pushed, true);

app.importButton_3.Position = [43 273 100 23];

app.importButton_3.Text = 'import';

% Create nchEditFieldLabel

app.nchEditFieldLabel = uilabel(app.UIFigure);

app.nchEditFieldLabel.HorizontalAlignment = 'right';

app.nchEditFieldLabel.Position = [30 240 25 22];

app.nchEditFieldLabel.Text = 'nch';

% Create nchEditField

app.nchEditField = uieditfield(app.UIFigure, 'text');

app.nchEditField.ValueChangedFcn = createCallbackFcn(app, @nchEditFieldValueChanged, true);

app.nchEditField.Position = [70 240 100 22];

% Create lookupEditFieldLabel

app.lookupEditFieldLabel = uilabel(app.UIFigure);

app.lookupEditFieldLabel.HorizontalAlignment = 'right';

app.lookupEditFieldLabel.Position = [18 307 40 22];

app.lookupEditFieldLabel.Text = 'lookup';

% Create lookupEditField

app.lookupEditField = uieditfield(app.UIFigure, 'text');

app.lookupEditField.ValueChangedFcn = createCallbackFcn(app, @lookupEditFieldValueChanged, true);

app.lookupEditField.Position = [73 307 100 22];

% Create pushButton

app.pushButton = uibutton(app.UIFigure, 'push');

app.pushButton.ButtonPushedFcn = createCallbackFcn(app, @pushButtonPushed, true);

app.pushButton.Position = [350 265 100 23];

app.pushButton.Text = 'push';

% Create VGSSpinnerLabel

app.VGSSpinnerLabel = uilabel(app.UIFigure);

app.VGSSpinnerLabel.HorizontalAlignment = 'right';

app.VGSSpinnerLabel.Position = [46 447 30 22];

app.VGSSpinnerLabel.Text = 'VGS';

% Create VGSSpinner

app.VGSSpinner = uispinner(app.UIFigure);

app.VGSSpinner.Step = 0.05;

app.VGSSpinner.Limits = [0 1.8];

app.VGSSpinner.Position = [91 447 70 22];

% Create VDSSpinnerLabel

app.VDSSpinnerLabel = uilabel(app.UIFigure);

app.VDSSpinnerLabel.HorizontalAlignment = 'right';

app.VDSSpinnerLabel.Position = [49 417 30 22];

app.VDSSpinnerLabel.Text = 'VDS';

% Create VDSSpinner

app.VDSSpinner = uispinner(app.UIFigure);

app.VDSSpinner.Step = 0.05;

app.VDSSpinner.Limits = [0 1.8];

app.VDSSpinner.Position = [94 417 71 22];

% Create VSBSpinnerLabel

app.VSBSpinnerLabel = uilabel(app.UIFigure);

app.VSBSpinnerLabel.HorizontalAlignment = 'right';

app.VSBSpinnerLabel.Position = [49 386 29 22];

app.VSBSpinnerLabel.Text = 'VSB';

% Create VSBSpinner

app.VSBSpinner = uispinner(app.UIFigure);

app.VSBSpinner.Step = 0.1;

app.VSBSpinner.Limits = [0 0.7];

app.VSBSpinner.Position = [93 386 72 22];

% Create LSpinnerLabel

app.LSpinnerLabel = uilabel(app.UIFigure);

app.LSpinnerLabel.HorizontalAlignment = 'right';

app.LSpinnerLabel.Position = [51 353 25 22];

app.LSpinnerLabel.Text = 'L';

% Create LSpinner

app.LSpinner = uispinner(app.UIFigure);

app.LSpinner.Step = 0.02;

app.LSpinner.Limits = [0.24 0.48];

app.LSpinner.ValueChangedFcn = createCallbackFcn(app, @LSpinnerValueChanged, true);

app.LSpinner.Position = [91 353 70 22];

app.LSpinner.Value = 0.24;

% Create XListBoxLabel

app.XListBoxLabel = uilabel(app.UIFigure);

app.XListBoxLabel.HorizontalAlignment = 'right';

app.XListBoxLabel.Position = [239 230 25 22];

app.XListBoxLabel.Text = 'X ';

% Create XListBox

app.XListBox = uilistbox(app.UIFigure);

app.XListBox.Items = {'g_m/I_D', 'Item 2', 'Item 3', 'Item 4'};

app.XListBox.ValueChangedFcn = createCallbackFcn(app, @XListBoxValueChanged, true);

app.XListBox.Position = [279 231 100 21];

app.XListBox.Value = 'g_m/I_D';

% Create YListBoxLabel

app.YListBoxLabel = uilabel(app.UIFigure);

app.YListBoxLabel.HorizontalAlignment = 'right';

app.YListBoxLabel.Position = [399 230 25 22];

app.YListBoxLabel.Text = 'Y ';

% Create YListBox

app.YListBox = uilistbox(app.UIFigure);

app.YListBox.Items = {'I_D/W', 'Item 2', 'Item 3', 'Item 4'};

app.YListBox.ValueChangedFcn = createCallbackFcn(app, @YListBoxValueChanged, true);

app.YListBox.Position = [439 231 100 21];

app.YListBox.Value = 'I_D/W';

% Show the figure after all components are created

app.UIFigure.Visible = 'on';

end

end

% App creation and deletion

methods (Access = public)

% Construct app

function app = app1

% Create UIFigure and components

createComponents(app)

% Register the app with App Designer

registerApp(app, app.UIFigure)

if nargout == 0

clear app

end

end

% Code that executes before app deletion

function delete(app)

% Delete UIFigure when app is deleted

delete(app.UIFigure)

end

end

end

I am beginner in matlab,recently I started building an application for gm/id methodology I tried to import look_up function and lookup tables which I generated,while building this GUI I am facing this error "Unrecognized method, property, or field 'updateGraph' for class 'app1'" for the above code, I am getting these below mentioned errors as well and not getting the plot also.

Error in app1/LSpinnerValueChanged (line 117)

app.updateGraph(selectedL);

Error in matlab.apps.AppBase>@(source,event)executeCallback(ams,app,callback,requiresEventData,event) (line 62)

newCallback = @(source, event)executeCallback(ams, ...

Error while evaluating Spinner PrivateValueChangedFcn.

Answer 1

[Steven Lord]

Your updateGraph function is nested inside your UIAxesButtonDown method. So it's not a method of the class.

Move the updateGraph function so it follows the end that ends the UIAxesButtonDown method. That will make it a method of the class.