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whats wrong in the for loop in my app?

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Muazma Ali
Muazma Ali 2024 年 2 月 25 日
回答済み: Eric Delgado 2024 年 4 月 1 日
type visualiseringsapp2_1.mlapp
classdef visualiseringsapp2_1 < matlab.apps.AppBase % Properties that correspond to app components properties (Access = public) UIFigure matlab.ui.Figure UITable matlab.ui.control.Table OsmoticdataresultsforallzonesLabel matlab.ui.control.Label ReadresultsLabel matlab.ui.control.Label Switch matlab.ui.control.Switch UIAxes matlab.ui.control.UIAxes end properties (Access = public) Callingapp end methods (Access = private) % Code that executes after component creation function startupFcn(app, app2, app3) app.Callingapp = app3; end % Value changed function: Switch function SwitchValueChanged(app, event) value = app.Switch.Value; if strcmpi(value,'on') osmotic_data_table=readtable('Osmotic_data.xls', "Sheet", 1); app.UITable.Data=osmotic_data_table; app.UITable.ColumnName= osmotic_data_table.Properties.VariableNames; x=table2array( osmotic_data_table(:,"Total_water_activity")); y=table2array( osmotic_data_table(:,"Osmotic_pressure")); plot(app.UIAxes,x,y) end for i = 1:app.Callingapp.antall_soner if Osmotic_pressure(i)<100 effect='Not benefical'; elseif Osmotic_pressure(i)>=100&&Osmotic_pressure(i)<120 effect='Intermediate'; else effect='Benefical'; end end app.UITable.Data=[osmotic_data_table effect]; end end % App initialization and construction methods (Access = private) % Create UIFigure and components function createComponents(app) % Create UIFigure app.UIFigure = uifigure; app.UIFigure.Position = [100 100 640 480]; app.UIFigure.Name = 'UI Figure'; % Create UITable app.UITable = uitable(app.UIFigure); app.UITable.ColumnName = {'Column 1'; 'Column 2'; 'Column 3'; 'Column 4'}; app.UITable.RowName = {}; app.UITable.Position = [15 254 426 185]; % Create OsmoticdataresultsforallzonesLabel app.OsmoticdataresultsforallzonesLabel = uilabel(app.UIFigure); app.OsmoticdataresultsforallzonesLabel.BackgroundColor = [0 1 1]; app.OsmoticdataresultsforallzonesLabel.FontWeight = 'bold'; app.OsmoticdataresultsforallzonesLabel.Position = [15 450 426 22]; app.OsmoticdataresultsforallzonesLabel.Text = ' Osmotic data results for all zones'; % Create ReadresultsLabel app.ReadresultsLabel = uilabel(app.UIFigure); app.ReadresultsLabel.FontWeight = 'bold'; app.ReadresultsLabel.Position = [121 215 78 22]; app.ReadresultsLabel.Text = 'Read results'; % Create Switch app.Switch = uiswitch(app.UIFigure, 'slider'); app.Switch.ValueChangedFcn = createCallbackFcn(app, @SwitchValueChanged, true); app.Switch.Position = [242 217 45 20]; % Create UIAxes app.UIAxes = uiaxes(app.UIFigure); title(app.UIAxes, 'Total water activity versus osmotic pressure') xlabel(app.UIAxes, 'Activity') ylabel(app.UIAxes, 'Osmotic_ pressure') app.UIAxes.YTickLabel = {'0'; '50'; '100'; '150'; '200'; '250'; '300'; '350'; '400'; '450'; '.500'; '1'}; app.UIAxes.XGrid = 'on'; app.UIAxes.YGrid = 'on'; app.UIAxes.Position = [15 10 426 185]; end end methods (Access = public) % Construct app function app = visualiseringsapp2_1(varargin) % Create and configure components createComponents(app) % Register the app with App Designer registerApp(app, app.UIFigure) % Execute the startup function runStartupFcn(app, @(app)startupFcn(app, varargin{:})) 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 have a for loop in visualiseringsapp 2_1 , there is something wrong in it I think
I am gettin this error message when I run the app:
Error using visualiseringsapp2_1/startupFcn (line 23)
Not enough input arguments.
Error in visualiseringsapp2_1 (line 115)
runStartupFcn(app, @(app)startupFcn(app, varargin{:}))
Error in app3/DisplayallresultsButtonPushed (line 1855)
visualiseringsapp2_1(app)
Error using matlab.ui.control.internal.controller.ComponentController/executeUserCallback (line 335)
Error while evaluating Button PrivateButtonPushedFcn.
Dot indexing is not supported for variables of this type.
Error in visualiseringsapp2_1/SwitchValueChanged (line 42)
for i = 1:app.Callingapp.antall_soner
Error using matlab.ui.control.internal.controller.ComponentController/executeUserCallback (line 378)
Error while evaluating Switch PrivateValueChangedFcn.
.......
I have declared app2 as the input argument in my startup for visualiseringsapp2_1 because it is using the public property from app2 (called antall_soner), and the callingapp is app 3 . ( meaning the visualiseringsapp2_1 is called from app3), as you can see.

回答 (1 件)

Eric Delgado
Eric Delgado 2024 年 4 月 1 日
My first piece of advice is: try to assign meaningful names to your applications. Names like 'app2', 'app3', and 'visualiseringsapp2_1' are definitely not helpful! :)
So, if I understood correctly, you're calling 'visualiseringsapp2_1' from 'app3', and you're trying to pass the handles of 'app2' and 'app3' to 'visualiseringsapp2_1'. Inside 'visualiseringsapp2_1', you have a startup function like this:
startupFcn(app, app2, app3)
The error messages was: "Not enough input arguments."
When you push a button, in "app3", you are calling:
visualiseringsapp2_1(app)
But look... you are not passing two arguments, but one! If you intend to keep 'app2' and 'app3' as arguments for your 'visualiseringsapp2_1' app, in this order, then your call (inside 'app3') should look something like this:
visualiseringsapp2_1(app.app2Handle, app)
Notice that since you want to pass the handle of 'app2' to 'visualiseringsapp2_1', it's a good idea to store its handle as a property of 'app3'. Below changes that you have to make...
%% Changes in "app3.mlapp"
properties (Access = public)
App2Handle
end
% DisplayallresultsButtonPushed
visualiseringsapp2_1(app.App2Handle, app)
%% Changes in "visualiseringsapp2_1.mlapp"
% Create a property for each handle...
properties (Access = public)
App2Handle
App3Handle
end
function startupFcn(app, app2, app3)
app.App2Handle = app2;
app.App3Handle = app3;
end
% And replace app.Callingapp.antall_soner for app.App2Handle.antall_soner

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