| burn_in | Burn in streams to a digital elevation model |
| check_running | Check whether a valid GRASS session is running |
| compute_metrics | Compute spatially explicit watershed attributes for survey sites on streams |
| convert_to_integer | Convert a raster to integer format |
| coord_to_raster | Turn coordinates of outlets into rasters |
| derive_flow | Obtain flow direction and accumulation over a digital elevation model (DEM) |
| derive_streams | Extract streams from a flow accumulation raster |
| fill_sinks | Fill sinks in a digital elevation model (DEM) |
| get_distance | Compute Euclidean distance to a survey site or stream line within a watershed |
| get_flow_length | Derive a flow length to streams and outlets |
| get_watershed | Delineate watershed for a survey site |
| plot_GRASS | A function to plot a raster from the current GRASS mapset |
| plot_layer | A function to plot a raster from a file name |
| point_to_raster | Convert outlet of a watershed from shapefile format into raster format |
| rasterise_stream | Turn a shapefile of stream edges into a raster |
| raster_to_mapset | Import rasters into GRASS mapset |
| rdwplus | An Implementation of IDW-PLUS (Inverse Distance Weighted Percent Land Use for Streams) in R |
| reclassify_streams | Reclassify streams into the format required for the land use metric calculations |
| report_mapset | Identify current mapset or list all possible mapsets |
| retrieve_raster | Write a raster layer from the current GRASS mapset to file |
| retrieve_vector | Write a vector layer from the current GRASS mapset to file |
| search_for_grass | Find GRASS installations |
| set_envir | Set environment parameters from a GIS layer. |
| silence | Function to suppress messages, warnings, errors from GRASS commands |
| snap_sites | A function to snap sites in a shapefile to a flow accumulation grid |
| toggle_silence | Toggle between silence on and silence off |
| vector_to_mapset | Import rasters into GRASS mapset |
| vibe_check | A function to print current vectors and rasters in the mapset. |