The algorithm of estimation index of Хersta (coefficient of self similarity) is in-process resulted with the use of nonlinear R/S are statisticians (method of the rationed scope). Possibility of classification of different classes of processes is illustrated with the use of R/S are statisticians. Estimation of scopes possible application of the R/S nonlinear (fractal) analysis the chaotic processes looked after on a background additive Gaussian noise is resulted, for their classification. It is rotined that possibilities of this method of analysis of processes are substantially limited with the increase of deposit of noise in the additive mixture of supervision.
R/S is statistics, index of Hearst, relation signal-to-noise