how to store values of a variable in array and store the array in a file in gui

Question

puja dutta 2014-6-20

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/136666-how-to-store-values-of-a-variable-in-array-and-store-the-array-in-a-file-in-gui

编辑： Joseph Cheng 2014-6-20

在 MATLAB Online 中打开

here is my code function Keyup_set

x1=0; x2=0; x3=0; f=0;

h = figure;

set(h,'KeyPressFcn',@KeyDownCb,'KeyReleaseFcn',@KeyUpCb)

tic;

function KeyDownCb(~,evnt)

       out = sprintf('Key: %s\n',evnt.Key);
     disp(out)
        x1=toc;      
     f=x1-x2;
         disp(f)
end
    function KeyUpCb(~,evnt)
         x2=toc;
     x3=(x2-x1); 
    disp(x3)
    end

end

   i have implemented this code in gui.Everytime i run this code, i need 9 values of f and x3.and i want to store all values of f and x3 in a array and store the array in a file using gui(using pushbutton how can store the array in file) .please help me

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Answer 1

Joseph Cheng 2014-6-20

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https://ww2.mathworks.cn/matlabcentral/answers/136666-how-to-store-values-of-a-variable-in-array-and-store-the-array-in-a-file-in-gui#answer_141799

you will need to call the function save() in the pushbutton callback. The documentation for save() will give you a good explanation of how to do this.

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puja dutta 2014-6-20

编辑：puja dutta 2014-6-20

i tried but i am not gettin.i used

savefile='puja.mat';

save(savefile,'handles.f')

in pushbutton but it shows error

handles.f is not a variable name

Joseph Cheng 2014-6-20

编辑：Joseph Cheng 2014-6-20

when you put a break point before the save does handles.f exist?

if not when you create handles.f you will need to call guidata(hObject, handles); at the end of the function (before it goes back to the main gui section) to update the handles object.

or... possibly that maynot work... i just noticed that you're not using guide.

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