Robust control tool box: Order reduction of a state space model including initial conditions

I've been attempting to reduce the order of a state space model, for example:

sys=ss(A,B,C,D)

sys_reduced=reduce(sys,10)

This works fine, however where I run into problems is that the state space has initial conditions for the state variables which are no longer valid for the reduced system, how can I convert the initial conditions for use in the reduced model?

Answer 1

[Richard]

I appear to have created a duplicate of this topic months later, please see http://www.mathworks.co.uk/matlabcentral/answers/16143-performing-a-model-order-reduction-including-initial-conditions for a full solution

Answer 2

[Özgür]

May be below matlab sub routine may help your problem.

try to use *modred *