how to get output of for loop in edit box for matlab gui?

i am building gui where in one call back im using for loop and whenever i run it ,i get output in command window. instead of this i want output to get displayed in edit box whenever i'll press pushbutton. this is my code, can you please help me out.

im = imread('image5.jpg');
 bw= im2bw(im,0.7);
    label=bwlabel(bw); 
    stats=regionprops(label,'Solidity','Area');
    density=[stats.Solidity];
    area=[stats.Area]; 
    high_dense_area=density>0.8; 
    max_area=max(area(high_dense_area));
    a = max_area
    if (100<a<250)
        fprintf('stage 1a');
    else
        fprintf('stage0');
    end

[Walter Roberson]

You have to set the String property of the edit box. If the Max property is set to 2 or more then you can use

handles.editbox7.String{end+1} = 'stage1a' ;

to append a new line there.