how can solve this probleme ??? Undefined function or variable

hello

how can i use the information defined in pushbutton1_Callback in the other pushbutton2_Callback without have this msg error

??? Undefined function or variable "net".

Error in ==> untitled>pushbutton2_Callback at 260
plot(net(2,:),net(3,:),'r.','MarkerSize',15);

Error in ==> gui_mainfcn at 98
       feval(varargin{:});

Error in ==> untitled at 42
    gui_mainfcn(gui_State, varargin{:});

Error in ==>
@(hObject,eventdata)untitled('pushbutton2_Callback',hObject,eventdata,guidata(hObject))

Answer 1

[Geoff Hayes]

Ali - you can easily make data available in other callbacks by using the handles structure (which is passed as the third parameter to each of your callbacks, assuming that you are using GUIDE). What you need to do is save the net data to handles in the callback for pushbutton1, and then access it from handles in the callback for pushbutton2. For example,

 function pushbutton1_Callback(hObject, eventdata, handles)
 % do something to get net and update the handles structure
 handles.net = net;
 guidata(hObject,handles);  % now save the updated handles structure

Note the use of guidata which is important in saving the updated handles structure. Now, in your second callback access net as

 function pushbutton2_Callback(hObject, eventdata, handles)

 if isfield(handles,'net')
     plot(handles.net(2,:),handles.net(3,:),'r.','MarkerSize',15);
 end

And that is it. The isfield is used above to make sure that the net exists in handles before we try to access it.

[Geoff Hayes]

ali's answer moved here

thank you so much i will try it and tell you the ressult

[ali hadjer]

thank you its work thank you