SARIMAX-Database: JPM Financial Time-Series and Spectral Analysis Results

Version 1.0.2 Update Added comprehensive README.md containing the Data Dictionary and hyperparameter documentation. Updated CITATION.cff with the permanent Zenodo DOI. Finalized repository structure for academic peer review. Summary This database provides a permanent snapshot of the data and analysis parameters used in the study of ARIMAX and spectral analysis. It includes the J.P. Morgan (JPM) financial time-series data and results. Contents README.md: Documentation of datasets and model settings. JPM Dataset: Historical time-series data used in the quarterly analysis. SARIMAX Configuration: Specific hyperparameters for model replication. Spectral Analysis Data: Results detailing detected wave magnitudes and periods. Citation Lin, Chengxiang. (2026). SARIMAX-Database: JPM Financial Time-Series and Spectral Analysis Results (v1.0.2). Zenodo. https://doi.org