Animated Gif mit Matlab erstellen

x = 0:0.01:1;

figure(1)

filename = 'testnew51.gif';

for n = 1:0.5:5

      y = x.^n;

      plot(x,y)

      drawnow

      frame = getframe(1);

      im = frame2im(frame);

      [imind,cm] = rgb2ind(im,256);

      if n == 1;

          imwrite(imind,cm,filename,'gif', 'Loopcount',inf);

      else

          imwrite(imind,cm,filename,'gif','WriteMode','append');

      end
end