| compute_log_returns | Compute log returns from a close-price vector. |
| fit_hmm_em | Fit a Gaussian or Student-t HMM via EM with multiple random restarts. |
| read_close_series | Read a close-price series from a CSV file. |
| run_kronx | Run the full Clock of Regimes (KRONX) analysis. |
| viterbi_decode | Decode the most likely hidden-state path via the Viterbi algorithm. |