How do i use the edit text box in a GUI to change variables in a function ???

Hi, everyone

I'm new in Matlab and i am trying to make a GUI work like I want it too. I want to be able to change values in my function from the GUI. This is code I want to run in the GUI. e_epoch, e_show, e_LR, e_valid, e_goals are the variables I want to be able to control from the GUI.

 function[net,tr]=backpropTrafo_1(e_epoch,e_show,e_LR,e_valid,e_goals);

 %parameter
 net.trainParam.epochs = e_epoch;
 net.trainParam.show = e_show;
 net.trainParam.lr = e_LR;
 net.trainParam.max_fail = e_valid;
 net.trainParam.goal = e_goals;

This is my GUI

I run its GUI. I put the string which is numeric into those 'edit textbox'. And then when I press pushbuttonPROSES, I want those variables that I've input on 'edit textbox' do calculate for function backpropTrafo_1. This is my code for callback function

function pushbuttonPROSES_Callback(hObject, eventdata, handles)
   Data_latih=xlsread('Data_TRAFO1.xlsx','jst_trafo1','G61:K66');
   Data_uji=xlsread('Data_TRAFO1.xlsx','jst_trafo1','G70:I75');
   e_epoch=str2num(char(get(handles.editEpoch,'String')));
   e_show=str2num(char(get(handles.editShow,'String')));
   e_LR=str2num(char(get(handles.editLR,'String')));
   e_valid=str2num(char(get(handles.editValid,'String')));
   e_goals=str2num(char(get(handles.editGoals,'String')));
   [net,tr]=backpropTrafo_1(e_epoch,e_show,e_LR,e_valid,e_goals);

When I pushed the pushbuttonPROSES in the GUI, I got back a error message that said:

Reference to a cleared variable e_epoch.
Error in backpropTrafo_1 (line 33)
      net.trainParam.epochs = e_epoch;
Error in Simulasi>pushbuttonPROSES_Callback (line 214)
      [net,tr]=backpropTrafo_1(e_epoch,e_show,e_LR,e_valid,e_goals);
Error in gui_mainfcn (line 95)
      feval(varargin{:});
Error in Simulasi (line 42)
  gui_mainfcn(gui_State, varargin{:});
Error in @(hObject,eventdata)Simulasi('pushbuttonPROSES_Callback',hObject,eventdata,guidata(hObject))
Error while evaluating UIControl Callback

Why do i get this error? Thanks in advance for any and all help.

[Walter Roberson]

Is it possible that you have a call to clear() somewhere in your code, especially in a different callback that you might be triggering while the above callback is still running ?

[Febrian Dhimas Syahfitra]

I don't know sir. So, what am I supposed to do ? Please, help me sir

[Febrian Dhimas Syahfitra]

Oh I see. Yeah I found 'clear' in my code. Thank you so much sir

Answer 1

[Jan]

Search for the command "clear" in your code. Then find out, if it is needed there or if it destroys your data only. In the 2nd case, delete the command.

[Febrian Dhimas Syahfitra]

Oh I see. Yeah I found 'clear' in my code. Thank you so much sir

Answer 2

[Ira Miranti]

I have the same problem. But i'm not find 'clear' in my code. What i should do?