H. Voss et J. Kurths, TEST FOR NONLINEAR DYNAMICAL BEHAVIOR IN SYMBOL SEQUENCES, Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics, 58(1), 1998, pp. 1155-1158
We discuss the analysis of highly discretized data, given as a time se
quence of measurements, and propose a test for nonlinear dynamical beh
avior. Statistical significance is achieved by means of surrogate data
, for which the construction rules are given. The method of surrogate
data as often applied to the analysis of time series, however, cannot
be used in the present case of the analysis of symbol sequences. There
fore, a considerably different technique is developed. The test is app
lied to several model examples.