ain any information about the stability of this
orbit against perturbations, as long as they are exactly on the limit
cycle. For transients, the situation can be different, but then data are not
distributed according to an invariant measure and the numerical values are thus
difficult to interpret. Apart from these difficulties, there is one relevant
positive feature: Lyapunov exponents are invariant under smooth transformations
and are thus independent of the measurement function or the embedding
procedure.