Current state of the stream
The State property of a quasi-random stream contains the index into the associated point set of the next point to draw in the stream. Getting and resetting the State property allows you to return a stream to a previous state. The initial value of State is 1.
Q = qrandstream('sobol', 5); s = Q.State; u1 = qrand(Q, 10) Q.State = s; u2 = qrand(Q, 10) % contains exactly the same values as u1