Hi. I'm a student and currently working on the MATLAB app designer and would like to know how to correctly use the checkbox in order to show the graph if I tick the box

value = app.CheckBox.Value;

x= 0:pi/100:2*pi;

y= cos(x);

switch value

case 0

app.CheckBox2.Value = 0;

case 1

app.CheckBox2.Value = 1;

end

Answer 1

[Rahul]

Hi @義典 鈴木,

The code shared reflects applying a switch statement to check if the checkbox is in the checked state or not. However, I am unsure if code to plot the graph is being used.

Consider the following steps:

• Add a checkbox component to your app.
• Add a 'ValueChangedFcn' callback to the checkbox component. This callback function will be called each time the checkbox is clicked.
• Inside this callback function in the 'Code View', you can insert the switch statement and the code for plotting the respective graph.

The following MATLAB Answer can be referred:

https://www.mathworks.com/matlabcentral/answers/1735890-what-is-the-difference-between-valuechangedfcn-and-valuechangingfcn

The following MathWorks documentations can be referred to know more:

'uicheckbox': https://www.mathworks.com/help/releases/R2021a/matlab/ref/uicheckbox.html

Thanks.