da = uicontrol('Style','Popup','String',...
       'Constant|Fill|Slosh|Fill & Slosh','Position',[20 320 100 50]);

dm = uicontrol('Style','Popup','String',...
       'Constant|Fill|Slosh|Fill & Slosh','Position',[120 320 100 50]);

mm = uicontrol('Style','Popup','String',...
       'Linear|Angular','Position',[220 320 100 50]);

go = uicontrol('Style','Pushbutton','Position',...
    [20 150 100 70], 'Callback','guiCallback','String','Go');
ÿ