| AddColorKey | Add Color Key to Plot |
| AddInsetMap | Add Inset Map to Plot |
| AddPoints | Add Points to Plot |
| AddScaleBar | Add Scale Bar to Plot |
| BumpDisconnectCells | Adjustment for Vertically Disconnected Cells |
| BumpRiverStage | Adjustment for Implausible River Stage |
| ExportRasterStack | Export Raster Stack |
| ExtractAlongTransect | Extract Raster Values Along Transect Line |
| GetDaysInMonth | Number of Days in a Year and Month |
| PlotCrossSection | Plot Method for Cross Sections |
| PlotGraph | Plot Method for Graphs |
| PlotMap | Plot Method for Maps |
| POSIXct2Character | Convert class from POSIXct to Character |
| ReadCodeChunks | Read Code Chunks |
| ReadModflowBinary | Read MODFLOW Binary File |
| ReplaceInTemplate | Replace Values in a Template Text |
| RmSmallCellChunks | Remove Small Cell Chunks |
| SetPolygons | Overlaying Multi-Polygon Objects |
| SummariseBudget | Summarize MODFLOW Water Budget |
| ToScientific | Format for Scientific Notation |