| 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 |