ajustar_curva           Fit an analytical calibration curve
analisar_sensibilidade
                        Evaluate the impact of suspicious observations
                        without deleting them
avaliar_adequacao       Evaluate calibration-curve adequacy against
                        explicit criteria
comparar_modelos        Compare OLS and WLS calibration models
dados_eurachem_a52      Eurachem A5.2 calibration data
diagnosticar_curva      Calculate calibration-curve diagnostics
gerar_relatorio_pdf     Generate a complete calibration-validation
                        report in PDF
grafico_calibracao      Plot an analytical calibration diagram
grafico_incerteza_predicao
                        Plot inverse prediction uncertainty over the
                        calibration range
grafico_influencia      Plot Cook's distance and leverage against their
                        screening limits
grafico_qq              Plot a normal Q-Q graph with a simulation
                        envelope for residuals
grafico_residuos        Plot standardized residuals against
                        concentration
grafico_variancia       Plot instrumental-response variability by
                        concentration
painel_calibracao       Create the four-panel calibration figure
relatorio_auditoria     Build an auditable calibration summary
retrocalcular_concentracao
                        Back-calculate concentration with GUM
                        uncertainty propagation
validar_curva           Validate analytical calibration data
