| calc.ctmax | Calculate Cmax and Tmax | 
| calc.par | Calculate NCA Parameters | 
| calc.par.th | Calculate Lambda_z Parameters | 
| check.input | Check qpNCA function arguments for validity | 
| correct.conc | Correct Missing Concentration | 
| correct.loq | Impute Concentrations Below the Limit of Quantitation | 
| correct.time | Correct Concentrations for Time Deviations | 
| est.thalf | Calculate Lambda_z and Elimination Half-life | 
| filenamefun | Create File Name for Regression Plots | 
| interpol | Interpolate Concentrations | 
| lag_lead | Estimate Lagging and Leading Times and Concentrations | 
| plot_reg | Plot Regression Curves | 
| qpNCA | Perform Non-compartmental Analysis | 
| tab.corr | Tabulate Corrections | 
| titlefun | Create Title for Regression Plots | 
| trap | Calculate Area Under the Curve Using Trapezoids | 
| trapm | Calculate Area Under the Moment Curve Using Trapezoids |