% simple script to control pause and notify in the command window
% pause for pauseit seconds
% pauseit = NaN or Inf pauses until keystroke
try
   switch pauseit
      case 0
      case 1
         disp('Paused ... press key to continue ...')
         pause
         disp('...continuing')
      otherwise
         disp('Pausing...')
         pause(pauseit)   
         disp('...continuing')      
   end
catch
  warning('Attempt to use pause_it function but flag pauseit=[]')
  disp(' therefore setting pause off with pauseit = 0')
  pauseit = 0;
end
% but always force plotting of the current frame
drawnow