How can I pass a variable (numeric) through a callback event when I pressed a key in my figure?

Hello,

I have an issue;

I am collecting data in a while loop and I want to store this data in my callback event when I press a key in my figure.

This does not work at all.

Could you please help me in this topic?

My code example:

set(gcf, 'KeyPressFcn', {@GetData, calibration});

while true
    pause(0.00001);
    [calibration] = ml_CANapeReadCalibrationObject(moduleHandle(1,2), 'F_DE_f_1', 1);
    sensorData = [sensorData; calibration(1)];
    plot(sensorData);
    drawnow;
    disp('getting data');
end

function GetData(src, event, sensorData)
finalData = [finalData; sensorData];
pause(1);
end

[Jan]

This piece of code is not running. It is not clear if the callback is a nested function or not. "Does not run at all" is not useful to explain the problem. Do you get an error message?

[Guilherme Lima]

There is the following error message

Undefined function or variable 'finalData'.

Error in FinalVersion_lateral_FoV>GetData (line 155)

finalData = [finalData; sensorData];

Error while evaluating Figure KeyPressFcn.

What is happening is that my variable sensorData is empty inside the function.

In the loop while, the variable sensroData is receving the value properly, but when I press some button in the keyboard, the function GetData is not getting the value that is in the variable sensorData.

I hope that is clear now. Please, let know if it is not.