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| GpboxXY | Work with shapefiles |
| GpcheckHandle | Check if the gnuplot session handle is valid |
| Gpclose | Close a gnuplot session |
| Gpcmd | Send one or more commands to gnuplot |
| Gpcolorhistogram | Plot a color histogram |
| Gpcols2rows | convert a file with columns to rows |
| GpcreateIndexFromMatrixAndPalette | Work with palette files |
| GpcreatePaletteFromMatrix | Work with palette files |
| GpdivergingColormap | Create diverging colormaps |
| Gperrmsg | Get gnuplot's error messages |
| Gpext2terminal | Determine a suitable terminal from a file extension |
| Gpfile2string | Read a text file to a string |
| GpfitAllprogress | Get the value of all parameters from a stderr fit file |
| GpfitProgress | Get the value of a parameter from a stderr fit file |
| Gpgetfontpath | Get gnuplot's additional directories, for fonts |
| Gpgetloadpath | Get gnuplot's additional directories, for data and scripts |
| Gpgetvariable | Get the value of a system or environment variable |
| Gpgetwd | Get gnuplot's working directory |
| GpgimpPalette2matrix | Work with palette files |
| Gph | Show gnuplot's help |
| GphexRGB | RGB sequence, from decimal to hexadecimal, ready for gnuplot |
| Gpimage2image | Simple image manipulation |
| Gpimage2PNG | Simple image manipulation |
| GpimageCrop | Simple image manipulation |
| GpimageDecimate | Simple image manipulation |
| GpimageFlip | Simple image manipulation |
| GpimagePlot | Simple image manipulation |
| GpimageResize | Simple image manipulation |
| GpimageRGBchange | Change image colors |
| GpimageRgbfalsecolor | Change image colors |
| GpimageRgbfiltercolorBlue | Change image colors |
| GpimageRgbfiltercolorGreen | Change image colors |
| GpimageRgbfiltercolorRed | Change image colors |
| GpimageRgbfiltercolorSepia | Change image colors |
| GpimageRgbfiltercolorSepia2 | Change image colors |
| GpimageRgbgreyscaleavg | Change image colors |
| GpimageRgbgreyscaleBT709 | Change image colors |
| GpimageRgbgreyscaleLinear | Change image colors |
| GpimageRgbgreyscaleLuminosity | Change image colors |
| GpimageRgbgreyscaleRMY | Change image colors |
| GpimageRgbgreyscaleY | Change image colors |
| GpimageRotate | Simple image manipulation |
| GpimageTile | Simple image manipulation |
| Gpinit | Open a gnuplot session |
| GpinitSaveStderr | Initialize gnuplot, save stderr to a log file |
| GpisWindowOpen | Check if an X11 window is opened |
| GpkillpidX11 | Kill X11 windows |
| GploadDemo | Load .dem gnuplot files |
| Gpmandel | Recursive implementation of the Mandelbrot set function |
| GpmapMerpar | Work with vector files for plotting maps |
| GpmapPNG2lines | Work with shapefiles |
| Gpmapsr2gnu | Work with vector files for plotting maps |
| Gpmath3dPlot | 3d plots like Mathematica |
| Gpmatrix2GimpPalette | Work with palette files |
| Gpmatrix2palette | Work with palette files |
| Gpmatrix2PNG | Work with shapefiles |
| Gpmatrix2XYdata | Converting a file to X, Y format |
| GpmatrixfilePad | Working with matrix and XY data files |
| Gpmatrixr2gnu | Save R matrix in gnuplot format |
| GppalettePlot | Work with palette files |
| Gppausableterm | Determine if the current terminal can be paused in synch with R |
| Gppause | Pauses the system |
| GppauseX | Pauses the system (X11) |
| GppidX11 | Get the pid from an X11 window |
| GpplotEquation | Plot the curve of an equation in 2D |
| GpplotFunction | Plots an expression in one function call |
| GpplotMap | Work with shapefiles |
| GpplotOnce | Plots arrays in one function call |
| GpplotPolyFit | Plots a polynomial fit in one function call |
| GpplotSlope | Plots a slope |
| GpplotX | Plot one list of doubles in 2D |
| GpplotXY | Plot two list of doubles in 2D |
| GpPNG2color | Convert PNG to text |
| GpPNG2RGB | Convert PNG to RGB |
| GpPNG4DEM | Convert PNG plus DEM to text |
| GpR2plot | Save 2D R to gnuplot |
| GpR2splot | Save 3D R to gnuplot |
| GpresampleDEM | Work with shapefiles |
| Gpresetplot | Reset the session |
| GpRGB1to3channels | Work with RGB data |
| GpRGB2DAT | Work with RGB data |
| GpRGB2image | Work with RGB data |
| GpRGBsample | Work with RGB data |
| Gprun | executes gnuplot code directly |
| GpsaveXYfile | Working with matrix and XY data files |
| Gpsetfontpath | Set gnuplot's additional directories, for fonts |
| Gpsetloadpath | Set gnuplot's additional directories, for data and scripts |
| Gpsetstyle | Set the plotting style |
| GpsetTerm | List or change gnuplot's current terminal |
| Gpsetvariable | Set a system or environment variable |
| Gpsetwd | Set gnuplot working directory |
| GpsetXlabel | Set the x-axis label |
| GpsetYlabel | Set the y-axis label |
| GpshowDatafileBinaryFiletypes | List gnuplot's RGB binary types |
| GpshowPaletteColornames | Work with palette files |
| Gpshowterm | Get gnuplot's current terminal |
| GpSHP2gnu | Work with shapefiles |
| Gpsplot | Plots an expression in 3D with one function call |
| GpURL2string | Read a text file from the web to a string |
| Gpversion | Get the gnuplot version |
| GpWindowStatus | Status of an X11 window |
| GpwriteMultiCsv | Write multi column CSV file |
| GpwriteXcsv | Write single column CSV file |
| GpwriteXYcsv | Write double column CSV file |
| GpX11Present | Check for X11 in the system |
| GpXYcoords2shpere | Working with matrix and XY data files |
| GpXYcoordsConvertFun | Working with matrix and XY data files |
| Gpxydata2matrix | Working with matrix and XY data files |
| %s% | String concatenation operator |