subplot with step and impulse answer

[Marcus Obst]

Hi,

I tried to subplot an impulse and step answer of an SISO system
within one chart:

octave.exe:1> sys = tf([1], [1 2]);
octave.exe:2> subplot(1, 2, 1), step(sys)
octave.exe:3> subplot(1, 2, 2), impulse(sys)

But it did not work as expected.  After both commands there is only
the impulse answer left.

In Matlab everything is fine.

Any ideas? (Octave version ist 3.0.0)

 Best regards from Erlangen/Germany!
 Marcus