| delay | Hydrological dataset to run TOPMODEL |
| ETp | Hydrological dataset to run TOPMODEL |
| flowlength | Calculates the flow distance towards the catchment outlet |
| huagrahuma | Hydrological dataset to run TOPMODEL |
| huagrahuma.dem | DEM of the Huagrahuma catchment, Ecuador |
| infiltration | Infiltration routine of TOPMODEL |
| make.classes | make topographic index classes from a topographic index map |
| NSeff | Calculation of the Nash-Sutcliffe efficiency |
| outlet | Conveniently query a subset of a matrix |
| parameters | Hydrological dataset to run TOPMODEL |
| Qobs | Hydrological dataset to run TOPMODEL |
| rain | Hydrological dataset to run TOPMODEL |
| river | Identification of rivers in a digital elevation model |
| sinkfill | Fill sinks in a digital elevation model |
| subcatch | Identify a hydrological catchment based on a single direction flow algorithm |
| topidx | Calculation of the topographic index from a DEM raster |
| topmodel | implementation of the hydrological model TOPMODEL |