MATLAB Program for Detrended Fluctuation Analysis

This MATLAB program is designed for Detrended Fluctuation Analysis (DFA), implementing sophisticated algorithms for digital signal processing and time series analysis. The program features a complete DFA workflow including trend removal through polynomial fitting, fluctuation calculation using root-mean-square analysis, and scaling exponent estimation via linear regression in log-log plots. It offers multiple configuration options allowing users to customize parameters such as detrending order, window sizes, and segmentation methods. The implementation includes key functions for data preprocessing, scaling range selection, and statistical validation of results. Additionally, the program incorporates a user-friendly graphical interface with intuitive navigation controls, visualization tools for fluctuation plots, and export capabilities for analysis results. Both beginners and experienced researchers can efficiently utilize this program for robust trend elimination and scaling characterization in time series data.