$                       Subset a GRaster layer, or return values from a
                        column of a GVector's table
$<-                     Replace a raster layer or a column from a
                        vector's data table
Arith,GRaster,logical-method
                        Arithmetic operations on GRasters
Compare,GRaster,GRaster-method
                        Compare-methods operations on GRasters and
                        GRegions
GLocation-class         Classes for fasterRaster sessions, regions,
                        rasters, and vectors
Logic,GRaster,GRaster-method
                        Logic-methods operations on GRasters
[                       Subset geometries of a GVector
[<-                     Replace values of a GRaster
[[                      Subset layers from a GRaster, or specific
                        columns from a GVector
[[<-                    Replace layers of a GRaster
activeCat,GRaster-method
                        Get or set the column with category labels in a
                        categorical raster
add<-                   "Stack" a GRaster
addCats,GRaster-method
                        Add rows or columns to the "levels" table of a
                        categorical raster
addTable<-,GVector,data.frame-method
                        Attach or detach GVector's data table
aggregate,GRaster-method
                        Aggregate raster cells into larger cells or
                        combine geometries of a vector
app,GRaster-method      Apply a function to a set of rasters
appFunsTable            Functions that can be used in app()
as.contour,GRaster-method
                        Contour lines from a "GRaster"
as.data.frame,GVector-method
                        Convert GVector to a data frame
as.int,GRaster-method   Coerce raster to integer, float, or double
                        precision
as.lines,GRaster-method
                        Convert a raster to a lines vector
as.points,GRaster-method
                        Convert a GRaster, or lines or polygons GVector
                        to a points vector
as.polygons,GRaster-method
                        Convert a raster to a polygons vector
bioclims,GRaster-method
                        BIOCLIM rasters
breakPolys,GVector-method
                        Fix issues with geometries of a vector
buffer,GRaster-method   Increase/decrease the size of a vector or
                        around non-NA cells of a raster
c,GRaster-method        "Stack" GRasters
catNames,GRaster-method
                        Names of columns of the levels table of a
                        categorical raster
cellSize,GRaster-method
                        Area of GRaster cells
centroids,GVector-method
                        Centroid(s) of a vector or clumps in a raster
classify,GRaster-method
                        Classify GRaster cell values
clump,GRaster-method    Group adjacent cells with similar values
clusterPoints,GVector-method
                        Identify clusters of points
colbind,GVector-method
                        Add columns to the data table of a GVector
combineLevels,GRaster-method
                        Combine levels table from multiple categorical
                        GRasters
compareGeom,GRaster,GRaster-method
                        Determine if GRasters and/or GVectors are
                        geographically comparable
complete.cases,GRaster-method
                        Rows of a GRaster or GVector's table that have
                        no NAs or that have NAs
compositeRGB,GRaster-method
                        Combine red, green, and blue color bands to
                        make a composite GRaster
concats,GRaster-method
                        Combine values/categories of multiple GRasters
                        into a single GRaster
connectors,GVector,GVector-method
                        Create lines connecting nearest features of two
                        GVectors
convHull,GVector-method
                        Minimum convex hull around a spatial vector
crds,GRaster-method     Coordinates of a vector"s features or a
                        raster"s cell centers
crop,GRaster-method     Remove parts of a GRaster or GVector
crs,missing-method      Coordinate reference system of a GRaster or
                        GVector
datatype,GRaster-method
                        Get the datatype of a GRaster or of GVector
                        columns
delaunay,GVector-method
                        Delaunay triangulation for points
denoise,GRaster-method
                        Remove or retain "noise" in a raster using PCA
dim,GRegion-method      Number of rows, columns, depths, cells, and
                        layers
disagg,GVector-method   Coerce as multipart GVector to a singlepart
                        GVector
distance,GRaster,missing-method
                        Geographic distance
dropRows,data.table-method
                        Remove rows in a data.table, data.frame, or
                        matrix.
droplevels,GRaster-method
                        Remove rows from the "levels" table of a
                        categorical raster
erase,GVector,GVector-method
                        Select parts of a polygon GVector erase shared
                        by another polygon GVector
expanse,GVector-method
                        Area of polygons or length of lines
ext,missing-method      Spatial bounds of a GRaster or GVector
extend,GRaster,numeric-method
                        Add rows and columns around a writeRaster
extract,GRaster,GVector-method
                        Extract values from a GRaster at locations in a
                        points GVector
fast                    Create a GRaster or GVector
fastData                Get one of the example rasters or spatial
                        vectors
faster                  Set or get options shared across fasterRaster
                        functions
fillHoles,GVector-method
                        Fill holes in a GVector
fillNAs,GRaster-method
                        Fill NA cells in a raster using interpolation
flow,GRaster-method     Identify watershed basins and direction and
                        accumulation of flow
flowPath,GRaster-method
                        Path of water flow across a landscape
focal,GRaster-method    Calculate cell values based on values of nearby
                        cells
fractalRast,GRaster-method
                        Create fractal raster
fragmentation,SpatRaster-method
                        Landscape fragmentation class following
                        Riitters et al. (2020)
freq,GRaster-method     Frequencies of cell values in a raster
geomorphons,GRaster-method
                        Identify terrain feature types
geomtype,GVector-method
                        Geometry of a GVector (points, lines, or
                        polygons)
global,GRaster-method   Summary statistics for GRasters
grassGUI,missing-method
                        Start the GRASS GUI (potentially dangerous!)
grassHelp               Open the help page for a GRASS tool
grassInfo               GRASS citation, version, and copyright
                        information
grassStarted            Has "GRASS" been started or not?
grid,GRaster-method     Create a grid GVector
head,GVector-method     Return first or last part of the data frame of
                        a GVector
hexagons,GRaster-method
                        Create a hexagonal grid
hillshade,GRaster-method
                        Hillshading
hist,GRaster-method     Plot a histogram of raster values
horizonHeight,GRaster-method
                        Horizon height
init,GRaster-method     GRaster with values equal to row, column,
                        coordinate, regular, or "chess"
interpIDW,GVector,GRaster-method
                        Interpolate values at points to a GRaster using
                        inverse-distance weighting
interpSplines,GVector,GRaster-method
                        Interpolate values at points to a GRaster using
                        splines
intersect,GVector,GVector-method
                        Intersection of two GVectors
is.2d,GSpatial-method   Test if a GRaster or GVector is 2- or
                        3-dimensional
is.int,GRaster-method   Data type of a raster
is.lonlat,character-method
                        Test if a coordinate reference system is
                        unprojected
is.na,GRaster-method    Mathematical operations on each layer of a
                        GRasters
kernel,GVector-method   Kernel density estimator of points
layerCor,GRaster-method
                        Correlation between GRasters
levels,GRaster-method   Set and get categories for categorical rasters
longlat,GRaster-method
                        Create longitude/latitude rasters
madChelsa               Rasters of bioclimatic variables for an eastern
                        portion of Madagascar
madCoast                Shapefile of a portion of the coastline of
                        Madagascar
madCoast0               Spatial vector of a portion of the coastline of
                        Madagascar
madCoast4               Spatial vector of a portion of the coastline of
                        Madagascar
madCover                Raster of land cover for an eastern portion of
                        Madagascar
madCoverCats            Table of land cover classes for an eastern
                        portion of Madagascar
madDypsis               Spatial points vector of records of Dypsis in
                        eastern Madagascar
madElev                 Elevation raster for an eastern portion of
                        Madagascar
madForest2000           Forest cover in year 2000 for a portion of
                        Madagascar
madForest2014           Forest cover in year 2014 for a portion of
                        Madagascar
madLANDSAT              Rasters of surface reflectance for an eastern
                        portion of Madagascar
madPpt                  Rasters of average monthly precipitation for an
                        eastern portion of Madagascar
madRivers               Major rivers in a selected portion of
                        Madagascar
madTmax                 Rasters of average monthly maximum temperature
                        for an eastern portion of Madagascar
madTmin                 Rasters of average monthly minimum temperature
                        for an eastern portion of Madagascar
mask,GRaster,GRaster-method
                        Mask values in a raster
maskNA,GRaster-method   Mask all non-NA cells or all NA cells
match,GRaster-method    Find which cells of a GRaster match certain
                        values
mean,GRaster-method     Mathematical operations on two or more GRasters
merge,GRaster,GRaster-method
                        Combine two or more rasters with different
                        extents and fill in NAs
minmax,GRaster-method   Minimum and maximum values or categories of a
                        GRaster
missingCats,GRaster-method
                        Values in a categorical raster with no assigned
                        category
mow                     Remove rasters and vectors from the GRASS cache
multivarEnvSim,GRaster,GRaster-method
                        Multivariate environmental similarity surface
                        (MESS)
nacell,GRaster-method   Number of NA or non-NA cells in a raster
names,GRaster-method    Name(s) of a GRaster or columns of a GVector's
                        data table
neighborhoodMatrix,GVector-method
                        Neighborhood matrix from a polygons GVector
ngeom,GVector-method    Number of geometries and subgeometries in a
                        vector
nlevels,GRaster-method
                        Number of categories in a categorical raster
pairs,GRaster-method    Scatterplot of values in each GRaster layer
                        against the others
pcs                     Retrieve a principal components model from a
                        PCA GRaster
plot,GRaster,missing-method
                        Display a raster or vector
plotRGB,GRaster-method
                        Create red-green-blue plot from a raster with
                        RGB layers
predict,GRaster-method
                        Make predictions from a linear or generalized
                        linear model to a GRaster
princomp,GRaster-method
                        Apply a principal component analysis (PCA) to
                        layers of a GRaster
project,GRaster-method
                        Change the coordinate reference system of a
                        GRaster or GVector
rNormRast,GRaster-method
                        Create a raster with random values drawn from a
                        normal distribution
rSpatialDepRast,GRaster-method
                        Create a random raster with or without spatial
                        dependence
rUnifRast,GRaster-method
                        Create a raster with random values drawn from a
                        uniform distribution
rWalkRast,GRaster-method
                        Create raster representing one or more random
                        walks
rast,GRaster-method     Convert a GRaster to a SpatRaster
rasterize,GVector,GRaster-method
                        Convert a GVector to a GRaster
rbind,GVector-method    Combine one or more GVectors
regress,GRaster,missing-method
                        Regression intercept, slope, r2, and t-value
                        across each set of cells
reorient,GRaster-method
                        Convert degrees between 'north-orientation' and
                        'east orientation'
replaceNAs,data.frame-method
                        Replace NAs in a data.table or data.frame
                        column, or in a vector
res,missing-method      Spatial resolution
resample,GRaster,GRaster-method
                        Change the cell size of a GRaster
ruggedness,GRaster-method
                        Terrain ruggedness index
rvoronoi,GRaster-method
                        Create a randomly-positioned tesselation
sampleRast,GRaster-method
                        Randomly sample cells from a GRaster
scale,GRaster-method    Center and scale a GRaster, or the opposite
segregate,GRaster-method
                        Create one GRaster layer per unique value in a
                        GRaster
selectRange,GRaster-method
                        Select values from rasters in a stack based on
                        values in another raster
seqToSQL                Format a numeric series into an SQL value call
simplifyGeom,GVector-method
                        Simplify the geometry of a vector
sineRast,GRaster-method
                        Sine wave rasters
smoothGeom,GVector-method
                        Smooth the geometry of a vector
sources,GRaster-method
                        Name of a raster or vector in a GRASS session
spatSample,GRaster-method
                        Sample random points from a GRaster or GVector
streams,GRaster-method
                        Create stream network
stretch,GRaster-method
                        Rescale values in a GRaster
subset,GRaster-method   Subset layers from a GRaster, or specific rows
                        from a GVector
subst,GRaster-method    Replace a specific value(s) in a GRaster
sun                     Solar radiance and irradiance
terrain,GRaster-method
                        Slope, aspect, curvature, and partial slopes
thinLines,GRaster-method
                        Reduce linear features on a raster so linear
                        features are 1 cell wide
thinPoints,GVector,GRaster-method
                        Reduce number of points in same raster cell
tiles,GRaster-method    Divide a GRaster into spatially exclusive
                        subsets
topology,GSpatial-method
                        Topology (2- or 3-dimensions) of a GRaster or
                        GVector
trim,GRaster-method     Remove rows and columns from a raster that are
                        all NA
union,GVector,GVector-method
                        Combine two GVectors
update,GRaster-method   Refresh metadata in a GRaster or GVector
vect,GVector-method     Convert a GVector to a SpatVector or sf vector
vegIndex,GRaster-method
                        Vegetation indices from surface reflectance
vegIndices              Table of vegetation indices that can be
                        calculated from remote sensing surface
                        reflectance data using 'vegIndex()'. A
                        near-comprehensive table of indices can be
                        found on the Index Database: A Database for
                        Remote Sensing Indices.
voronoi,GVector-method
                        Voronoi tessellation
wetness,GRaster-method
                        Topographic wetness index
writeRaster,GRaster,character-method
                        Save a GRaster to disk
writeVector,GVector,character-method
                        Save a GVector to disk
xor,GVector,GVector-method
                        Select parts of polygons not shared between two
                        GVectors
zonal,GRaster,ANY-method
                        Statistics on cells of a GRaster stratified by
                        cells of another raster
zonalGeog,GRaster-method
                        Geographic statistics for sets of cells with
                        the same values
