| GPIC-package | GPIC: Quantifying Group Performance in Individual Competitions | 
| df2idx | Compute GPIC for Multiple Groups | 
| n2p | Calculate Proportions | 
| vec2idx | Compute GPIC for Single Group | 
| vno | Results of Vietnamese National Olympiads 2010-2020 | 
| vnomath | Results of Vietnamese Mathematical Olympiad 2010-2020 |