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.
