| collect_par | Collect parameters from the short, intermediate and auxiliary regressions |
| cplotbias | Create contour plot of bias |
| delfplot | Plot graph of function delta=f(Rmax) |
| dplotbate | Histogram of bias adjusted treatment effect |
| expand_border | Extend border of bounded box by +/- e |
| get_border | Identify all border points in a region |
| mycubic | Compute roots of the cubic equation |
| mydisc | Evaluates discriminant of the cubic equation |
| NLSY_BW | NLSY Birth Weight. |
| NLSY_IQ | NLSY IQ. |
| osterbds | Computes identified set according to Oster (2019) |
| osterdelstar | Computes delta* according to Oster (2019) |
| ovbias | Compute bias adjusted treatment effect taking parameter vector as input. |
| ovbias_lm | Compute bias adjusted treatment effect taking three lm objects as input. |
| ovbias_par | Compute bias adjusted treatment effect taking data frame as input. |
| partocoef | Returns coefficients of the cubic equation |
| selectroot | Select root of the cubic based on the root of a nearest point |
| split_nurr | Split a region into two parts |
| urrplot | Region plot to demarcate URR and NURR for the bounded box |