click button to read in data from edit field in matlab

To read data from an edit field in MATLAB upon clicking a button, you need to create a GUI and set a callback function for the button.

Here's an example code:

main.m
function myGUI()
    % Create a GUI window
    fig = uifigure('Name', 'Read Data Example', 'Position', [100 100 300 200]);
    
    % Create an edit field
    editField = uieditfield(fig, 'numeric', 'Position', [50 100 200 22]);
    
    % Create a button
    button = uibutton(fig, 'push', 'Position', [100 50 100 30], 'Text', 'Read Data');
    
    % Set a callback for the button
    button.ButtonPushedFcn = @(btn,event) readData(editField);
end

function readData(editField)
    % Get the data from the edit field
    data = editField.Value;
    
    % Display the data in the MATLAB command window
    disp(['Data from the edit field: ' num2str(data)]);
end
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In this example, myGUI() creates a GUI window with an edit field and a button. The callback function readData() is called when the button is clicked. It retrieves the data from the edit field using editField.Value and displays it in the MATLAB command window using disp(). You can modify the code in readData() to perform any other actions you need with the data.

To use this code, save it in a MATLAB script file and run it.

Note: This example assumes you are using MATLAB's UI components (uifigure, uieditfield, uibutton). If you are using MATLAB's older GUI components (figure, uicontrol), the code will be slightly different.