Hello there, This is to announce that version 4.2 of Visual Recurrence Analysis has been released. Visual Recurrence Analysis v4.2 (VRA) for Windows 95, 98, and NT is a software package for topological analysis, qualitative and quantitative assessment, and nonparametric prediction of nonlinear and chaotic time series. Main features: - Pattern and determinism recognition in the time series using the recurrence plot, which is essentially a graphical representation of the correlation integral in such a way so that the temporal dependence in the system under study is preserved. - Dynamic recurrence quantification analysis (RQA) for recurrence plots classification and characterization: analyze stationarity, periodicity, determinism, and complexity of the dynamical system as it evolves in time. - Recurrence plots animation: see the dynamical system trajectories recovered from the time series stretch and unfold in real time. - Average Mutual Information, False Nearest Neighbors, and spatio-temporal entropy methods to determine the optimal values of embedding dimension and time delay for delayed coordinate embedding. - Nonparametric modeling for nonlinear time series prediction. A wide variety of models and options is available, including nearest neighbor, locally constant, locally linear, locally weighted linear, kernel regression, and radial basis functions models. - Importing time series stored in different file formats, including ASCII text, MS Excel, and sound (WAVE) formats. - Sample data sets (periodic, chaotic, and random), comprehensive context-sensitive help, and references are included. New in this latest version: - Radial basis functions added to the nonparametric prediction module - Extended the prediction interval beyond the last point in the series - Improved zooming in/out when viewing charts - Fixed a bug that caused a "floating point" error in RQA - Help file extended and updated VRA v4.2 remains free provided that it is used for educational, academic, and research purposes. VRA v4.2 can be downloaded from http://home.netcom.com/~eugenek/download.html If you have any comments or suggestions regarding VRA and its use, please email me at [EMAIL PROTECTED] Thank you very much for your interest, Eugene Kononov.
