1. Method for the determination of at least one partial model of a model of a system, a state of the system being described by state quantities, in which plural sets of values of the state quantities are determined, in which a probability distribution for the state quantities is determined from the sets, in which the partial model of the system is determined using the sets and the probability distribution for the state quantities and using a statistical learning method, the partial model describing the system under the precondition of the probability distribution for the state quantities, wherein at least one of the state quantities is a discrete state quantity.