i am trying to build a gui in which first popupmenu1 having code which gives results as 'rs' and i want to pass that result to next popupmenu2 i have used guidata to do so but i am getting error " reference to non existance field "

the code I have write as function popupmenu1_Callback(hObject, eventdata, handles)

 switch get(handles.category,'string')

      case 'Tomato' % User selects Peaks.
         %%%%%%%%%%%%maturity %%%%%%%%%%%%
          a=imread('picview_tmpEnvironmental214.jpg'); 
       b=a;
a=rgb2gray(a);

 a=im2bw(a,.5);

 [m,n]=size(a);
 a=~a;
  figure,
 imshow(a);
 count=0;
  for i=1:m
    for j=1:n
        if(a(i,j)==1)
            count=count+1;
        end
    end
  end
   a=b;
   [rows cols plane] = size(a); 
                      rplane = a( : , : ,1); 
                      gplane = a( : , : ,2); 
                      bplane = a( : , : ,3); 

                       flag=0;
                      for x=1:1:rows;
                         for y=1:1:cols
                              if ((128 < rplane(x,y) & rplane(x,y) <= 255) & (0 < gplane(x,y) & gplane(x,y) <= 128) & (0 < bplane(x,y) & bplane(x,y) <= 128))
                                            flag=1+flag;
                              end
                          end
                    end

                 K=count;
             %K=rows*cols-%no of white or black pixels(that meance pixels other than fruit pixels);
                rs = (flag/K)*100;
                handles.rs=rs;
                guidata(hObject,handles)

 %%%%%%%%%%%%defect on the basis of colour %%%%%%%%%%%%%%%%%%%%%%%%
      case 'Mango' % User selects Membrane.

      case 'Apple ju ju be' % User selects Sinc.

      case 'Orange'
        otherwise;
    end

function popupmenu2_Callback(hObject, eventdata, handles)

 rs3=handles.rs;

please suggest the solution

[Image Analyst]

Hard to read. You should really learn the trick of control-a, control-i to properly indent all your code. Do that in the MATLAB editor, then copy and paste here, highlight all the code, and then click the "{}Code" icon.

[rahul ahire]

I will resend the question

[Image Analyst]

Yes, but it's just as bad as this one. You didn't fix the formatting. Anyway, did you see my answer below?

Answer 1

[Image Analyst]

Set a breakpoint on the line where you assign it and see if it stops there. I bet it does not get to that line at all.