Plotting simple function with App Designer

Hello! I'm a beginner and I was wondering how can I build a GUI where I can insert a simple function and then I can plot it.

My final goal in one month will be to create a GUI that represents a Fourier transrom and how it changes when I change the angle offset, amplitude and so on.

any suggestions/tutorial?

Thank you

[Agnish Dutta]

You can use MATLAB appdesigner to build GUIs.

Introduction: https://www.mathworks.com/products/matlab/app-designer.html

The following page will give you an overview of the different components of appdesigner and their properties:

https://www.mathworks.com/help/matlab/creating_guis/choose-components-for-your-app-designer-app.html

In the appdesigner window, components can be dragged and placed in the main panel (which is a UI Figure object).

Next, you'll need to know how to manipulate the different objects and their properties using Callbacks. Callbacks are basically functions that are executed when certain event/s are triggered such as a button being pushed or a slider being moved. The following explains the same in detail:

https://www.mathworks.com/help/matlab/creating_guis/write-callbacks-for-gui-in-app-designer.html

Coming to the specific question which is about creating a GUi that plots a function, the following code may be used:

syms x;        % Create a symbolic variable 'x'.
y = sin(x);    % Create another variable 'y = sin(x)'.

fig1 = uifigure;        % Create a uifigure object.
ax1 = uiaxes(fig1);     % Create a uiaxes object with fig1 as its parent.
fplot(ax1, x, y);       % Plot x vs y on the uiaxes object.

https://www.mathworks.com/help/matlab/ref/matlab.ui.control.uiaxes-properties.html

This will generate the plot on a GUI programmatically. The same can be done via appdesigner. You'll need a means to import data into your app though. I suggest using the uigetfile function. It return the file and it's path, that can be selected from a dialogue box.

https://www.mathworks.com/help/matlab/ref/uigetfile.html