Faster Raster and Spatial Vector Processing Using 'GRASS GIS'

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Documentation for package ‘fasterRaster’ version 8.4.0.3

• DESCRIPTION file.
• User guides, package vignettes and other documentation.
• Package NEWS.

Help Pages

A B C D E F G H I K L M N P Q R S T U V W X Y Z misc

-- A --

abs	Mathematical operations on each layer of a GRasters
abs-method	Mathematical operations on each layer of a GRasters
acos	Mathematical operations on each layer of a GRasters
acos-method	Mathematical operations on each layer of a GRasters
activeCat	Get or set the column with category labels in a categorical raster
activeCat-method	Get or set the column with category labels in a categorical raster
activeCat<-	Get or set the column with category labels in a categorical raster
activeCat<--method	Get or set the column with category labels in a categorical raster
activeCats	Get or set the column with category labels in a categorical raster
activeCats-method	Get or set the column with category labels in a categorical raster
add<-	"Stack" a GRaster
add<--method	"Stack" a GRaster
addCats	Add rows or columns to the "levels" table of a categorical raster
addCats-method	Add rows or columns to the "levels" table of a categorical raster
addCats<-	Add rows or columns to the "levels" table of a categorical raster
addCats<--method	Add rows or columns to the "levels" table of a categorical raster
addons	Test if addons directory exists and if an addon is installed
addTable<-	Attach or detach GVector's data table
addTable<--method	Attach or detach GVector's data table
aggregate	Aggregate raster cells into larger cells or combine geometries of a vector
aggregate-method	Aggregate raster cells into larger cells or combine geometries of a vector
allNA	Mathematical operations on two or more GRasters
allNA-method	Mathematical operations on two or more GRasters
anyNA	Mathematical operations on two or more GRasters
anyNA-method	Mathematical operations on two or more GRasters
app	Apply a function to a set of rasters
app-method	Apply a function to a set of rasters
appCheck	Apply a function to a set of rasters
appCheck-method	Apply a function to a set of rasters
appFuns	Apply a function to a set of rasters
appFunsTable	Functions that can be used in app()
Arith	Arithmetic operations on GRasters
Arith-method	Arithmetic operations on GRasters
as.contour	Contour lines from a "GRaster"
as.contour-method	Contour lines from a "GRaster"
as.data.frame	Convert GVector to a data frame
as.data.frame-method	Convert GVector to a data frame
as.data.table	Convert GVector to a data frame
as.data.table-method	Convert GVector to a data frame
as.doub	Coerce raster to integer, float, or double precision
as.doub-method	Coerce raster to integer, float, or double precision
as.float	Coerce raster to integer, float, or double precision
as.float-method	Coerce raster to integer, float, or double precision
as.int	Coerce raster to integer, float, or double precision
as.int-method	Coerce raster to integer, float, or double precision
as.lines	Convert a raster to a lines vector
as.lines-method	Convert a raster to a lines vector
as.points	Convert a GRaster, or lines or polygons GVector to a points vector
as.points-method	Convert a GRaster, or lines or polygons GVector to a points vector
as.polygons	Convert a raster to a polygons vector
as.polygons-method	Convert a raster to a polygons vector
asin	Mathematical operations on each layer of a GRasters
asin-method	Mathematical operations on each layer of a GRasters
atan	Mathematical operations on each layer of a GRasters
atan-method	Mathematical operations on each layer of a GRasters
atan2	Mathematical operations on each layer of a GRasters
atan2-method	Mathematical operations on each layer of a GRasters

-- B --

bioclims	BIOCLIM rasters
bioclims-method	BIOCLIM rasters
bottom	Spatial bounds of a GRaster or GVector
bottom-method	Spatial bounds of a GRaster or GVector
breakPolys	Fix issues with geometries of a vector
breakPolys-method	Fix issues with geometries of a vector
buffer	Increase/decrease the size of a vector or around non-NA cells of a raster
buffer-method	Increase/decrease the size of a vector or around non-NA cells of a raster

-- C --

c	"Stack" GRasters
c-method	"Stack" GRasters
categories	Set and get categories for categorical rasters
categories-method	Set and get categories for categorical rasters
catNames	Names of columns of the levels table of a categorical raster
catNames-method	Names of columns of the levels table of a categorical raster
cats	Set and get categories for categorical rasters
cats-method	Set and get categories for categorical rasters
ceiling	Mathematical operations on each layer of a GRasters
ceiling-method	Mathematical operations on each layer of a GRasters
cellSize	Area of GRaster cells
cellSize-method	Area of GRaster cells
centroids	Centroid(s) of a vector
centroids-method	Centroid(s) of a vector
classify	Classify GRaster cell values
classify-method	Classify GRaster cell values
clump	Group adjacent cells with similar values
clump-method	Group adjacent cells with similar values
clusterPoints	Identify clusters of points
clusterPoints-method	Identify clusters of points
colbind	Add columns to the data table of a GVector
colbind-method	Add columns to the data table of a GVector
combineLevels	Combine levels table from multiple categorical GRasters
combineLevels-method	Combine levels table from multiple categorical GRasters
Compare-method	Compare-methods operations on GRasters and GRegions
Compare-methods	Compare-methods operations on GRasters and GRegions
compareGeom	Determine if GRasters and/or GVectors are geographically comparable
compareGeom-method	Determine if GRasters and/or GVectors are geographically comparable
complete.cases	Rows of a GRaster or GVector's table that have no NAs or that have NAs
complete.cases-method	Rows of a GRaster or GVector's table that have no NAs or that have NAs
compositeRGB	Combine red, green, and blue color bands to make a composite GRaster
compositeRGB-method	Combine red, green, and blue color bands to make a composite GRaster
concats	Combine values/categories of multiple GRasters into a single GRaster
concats-method	Combine values/categories of multiple GRasters into a single GRaster
connectors	Create lines connecting nearest features of two GVectors
connectors-method	Create lines connecting nearest features of two GVectors
convHull	Minimum convex hull around a spatial vector
convHull-method	Minimum convex hull around a spatial vector
coordRef	Coordinate reference system of a GRaster or GVector
coordRef-method	Coordinate reference system of a GRaster or GVector
cos	Mathematical operations on each layer of a GRasters
cos-method	Mathematical operations on each layer of a GRasters
count	Mathematical operations on two or more GRasters
count-method	Mathematical operations on two or more GRasters
crds	Coordinates of a vector"s features or a raster"s cell centers
crds-method	Coordinates of a vector"s features or a raster"s cell centers
crop	Remove parts of a GRaster or GVector
crop-method	Remove parts of a GRaster or GVector
crs	Coordinate reference system of a GRaster or GVector
crs-method	Coordinate reference system of a GRaster or GVector

-- D --

datatype	Get the datatype of a GRaster or of GVector columns
datatype-method	Get the datatype of a GRaster or of GVector columns
delaunay	Delaunay triangulation for points
delaunay-method	Delaunay triangulation for points
denoise	Remove or retain "noise" in a raster using PCA
denoise-method	Remove or retain "noise" in a raster using PCA
dim	Number of rows, columns, depths, cells, and layers
dim-method	Number of rows, columns, depths, cells, and layers
dim3d	Number of rows, columns, depths, cells, and layers
dim3d-method	Number of rows, columns, depths, cells, and layers
disagg	Coerce as multipart GVector to a singlepart GVector
disagg-method	Coerce as multipart GVector to a singlepart GVector
distance	Geographic distance
distance-method	Geographic distance
droplevels	Remove rows from the "levels" table of a categorical raster
droplevels-method	Remove rows from the "levels" table of a categorical raster
dropRows	Remove rows in a data.table, data.frame, or matrix.
dropRows-method	Remove rows in a data.table, data.frame, or matrix.
dropTable	Attach or detach GVector's data table
dropTable-method	Attach or detach GVector's data table

-- E --

E	Spatial bounds of a GRaster or GVector
E-method	Spatial bounds of a GRaster or GVector
erase	Select parts of a polygon GVector erase shared by another polygon GVector
erase-method	Select parts of a polygon GVector erase shared by another polygon GVector
exp	Mathematical operations on each layer of a GRasters
exp-method	Mathematical operations on each layer of a GRasters
expanse	Area of polygons or length of lines
expanse-method	Area of polygons or length of lines
ext	Spatial bounds of a GRaster or GVector
ext-method	Spatial bounds of a GRaster or GVector
extend	Add rows and columns around a writeRaster
extend-method	Add rows and columns around a writeRaster
extract	Extract values from a GRaster at locations in a points GVector
extract-method	Extract values from a GRaster at locations in a points GVector

-- F --

fast	Create a GRaster or GVector
fast-method	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	Fill holes in a GVector
fillHoles-method	Fill holes in a GVector
fillNAs	Fill NA cells in a raster using interpolation
fillNAs-method	Fill NA cells in a raster using interpolation
fixBridges	Fix issues with geometries of a vector
fixBridges-method	Fix issues with geometries of a vector
fixDangles	Fix issues with geometries of a vector
fixDangles-method	Fix issues with geometries of a vector
fixLines	Fix issues with geometries of a vector
fixLines-method	Fix issues with geometries of a vector
floor	Mathematical operations on each layer of a GRasters
floor-method	Mathematical operations on each layer of a GRasters
flow	Identify watershed basins and direction and accumulation of flow
flow-method	Identify watershed basins and direction and accumulation of flow
flowPath	Path of water flow across a landscape
flowPath-method	Path of water flow across a landscape
focal	Calculate cell values based on values of nearby cells
focal-method	Calculate cell values based on values of nearby cells
fractalRast	Create fractal raster
fractalRast-method	Create fractal raster
fragmentation	Landscape fragmentation class following Riitters et al. (2020)
fragmentation-method	Landscape fragmentation class following Riitters et al. (2020)
freq	Frequencies of cell values in a raster
freq-method	Frequencies of cell values in a raster

-- G --

geomorphons	Identify terrain feature types
geomorphons-method	Identify terrain feature types
geomtype	Geometry of a GVector (points, lines, or polygons)
geomtype-method	Geometry of a GVector (points, lines, or polygons)
global	Summary statistics for GRasters
global-method	Summary statistics for GRasters
GLocation	Classes for fasterRaster sessions, regions, rasters, and vectors
GLocation-class	Classes for fasterRaster sessions, regions, rasters, and vectors
grassGUI	Start the GRASS GUI (potentially dangerous!)
grassGUI-method	Start the GRASS GUI (potentially dangerous!)
grassHelp	Open the help page for a GRASS module
grassInfo	GRASS citation, version, and copyright information
grassStarted	Has "GRASS" been started or not?
GRaster	Classes for fasterRaster sessions, regions, rasters, and vectors
GRaster-class	Classes for fasterRaster sessions, regions, rasters, and vectors
GRegion	Classes for fasterRaster sessions, regions, rasters, and vectors
GRegion-class	Classes for fasterRaster sessions, regions, rasters, and vectors
grid	Create a grid GVector
grid-method	Create a grid GVector
GSpatial	Classes for fasterRaster sessions, regions, rasters, and vectors
GSpatial-class	Classes for fasterRaster sessions, regions, rasters, and vectors
GVector	Classes for fasterRaster sessions, regions, rasters, and vectors
GVector-class	Classes for fasterRaster sessions, regions, rasters, and vectors

-- H --

head	Return first or last part of the data frame of a GVector
head-method	Return first or last part of the data frame of a GVector
hexagons	Create a hexagonal grid
hexagons-method	Create a hexagonal grid
hillshade	Hillshading
hillshade-method	Hillshading
hist	Plot a histogram of raster values
hist-method	Plot a histogram of raster values
horizonHeight	Horizon height
horizonHeight-method	Horizon height

-- I --

init	GRaster with values equal to row, column, coordinate, regular, or "chess"
init-method	GRaster with values equal to row, column, coordinate, regular, or "chess"
interpIDW	Interpolate values at points to a GRaster using inverse-distance weighting
interpIDW-method	Interpolate values at points to a GRaster using inverse-distance weighting
interpSplines	Interpolate values at points to a GRaster using splines
interpSplines-method	Interpolate values at points to a GRaster using splines
intersect	Intersection of two GVectors
intersect-method	Intersection of two GVectors
is.2d	Test if a GRaster or GVector is 2- or 3-dimensional
is.2d-method	Test if a GRaster or GVector is 2- or 3-dimensional
is.3d	Test if a GRaster or GVector is 2- or 3-dimensional
is.3d-method	Test if a GRaster or GVector is 2- or 3-dimensional
is.cell	Data type of a raster
is.cell-method	Data type of a raster
is.doub	Data type of a raster
is.doub-method	Data type of a raster
is.factor	Data type of a raster
is.factor-method	Data type of a raster
is.float	Data type of a raster
is.float-method	Data type of a raster
is.int	Data type of a raster
is.int-method	Data type of a raster
is.lines	Geometry of a GVector (points, lines, or polygons)
is.lines-method	Geometry of a GVector (points, lines, or polygons)
is.lonlat	Test if a coordinate reference system is unprojected
is.lonlat-method	Test if a coordinate reference system is unprojected
is.na	Mathematical operations on each layer of a GRasters
is.na-method	Mathematical operations on each layer of a GRasters
is.points	Geometry of a GVector (points, lines, or polygons)
is.points-method	Geometry of a GVector (points, lines, or polygons)
is.polygons	Geometry of a GVector (points, lines, or polygons)
is.polygons-method	Geometry of a GVector (points, lines, or polygons)

-- K --

kernel	Kernel density estimator of points
kernel-method	Kernel density estimator of points
kurtosis	Mathematical operations on two or more GRasters
kurtosis-method	Mathematical operations on two or more GRasters

-- L --

layerCor	Correlation between GRasters
layerCor-method	Correlation between GRasters
levels	Set and get categories for categorical rasters
levels-method	Set and get categories for categorical rasters
levels<-	Set and get categories for categorical rasters
levels<--method	Set and get categories for categorical rasters
ln	Mathematical operations on each layer of a GRasters
ln-method	Mathematical operations on each layer of a GRasters
log	Mathematical operations on each layer of a GRasters
log-method	Mathematical operations on each layer of a GRasters
log10	Mathematical operations on each layer of a GRasters
log10-method	Mathematical operations on each layer of a GRasters
log10p	Mathematical operations on each layer of a GRasters
log10p-method	Mathematical operations on each layer of a GRasters
log1p	Mathematical operations on each layer of a GRasters
log1p-method	Mathematical operations on each layer of a GRasters
log2	Mathematical operations on each layer of a GRasters
log2-method	Mathematical operations on each layer of a GRasters
Logic-method	Logic-methods operations on GRasters
Logic-methods	Logic-methods operations on GRasters
longlat	Create longitude/latitude rasters
longlat-method	Create longitude/latitude rasters

-- M --

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	Mask values in a raster
mask-method	Mask values in a raster
maskNA	Mask all non-NA cells or all NA cells
maskNA-method	Mask all non-NA cells or all NA cells
match	Find which cells of a GRaster match certain values
match-method	Find which cells of a GRaster match certain values
max	Mathematical operations on two or more GRasters
max-method	Mathematical operations on two or more GRasters
mean	Mathematical operations on two or more GRasters
mean-method	Mathematical operations on two or more GRasters
median	Mathematical operations on two or more GRasters
median-method	Mathematical operations on two or more GRasters
merge	Combine two or more rasters with different extents and fill in NAs
merge-method	Combine two or more rasters with different extents and fill in NAs
min	Mathematical operations on two or more GRasters
min-method	Mathematical operations on two or more GRasters
minmax	Minimum and maximum values or categories of a GRaster
minmax-method	Minimum and maximum values or categories of a GRaster
missing.cases	Rows of a GRaster or GVector's table that have no NAs or that have NAs
missing.cases-method	Rows of a GRaster or GVector's table that have no NAs or that have NAs
missingCats	Values in a categorical raster with no assigned category
missingCats-method	Values in a categorical raster with no assigned category
mmode	Mathematical operations on two or more GRasters
mmode-method	Mathematical operations on two or more GRasters
mow	Remove rasters and vectors from the GRASS cache

-- N --

N	Spatial bounds of a GRaster or GVector
N-method	Spatial bounds of a GRaster or GVector
nacell	Number of NA or non-NA cells in a raster
nacell-method	Number of NA or non-NA cells in a raster
names	Name(s) of a GRaster or columns of a GVector's data table
names-method	Name(s) of a GRaster or columns of a GVector's data table
names<-	Name(s) of a GRaster or columns of a GVector's data table
names<--method	Name(s) of a GRaster or columns of a GVector's data table
ncell	Number of rows, columns, depths, cells, and layers
ncell-method	Number of rows, columns, depths, cells, and layers
ncell3d	Number of rows, columns, depths, cells, and layers
ncell3d-method	Number of rows, columns, depths, cells, and layers
ncol	Number of rows, columns, depths, cells, and layers
ncol-method	Number of rows, columns, depths, cells, and layers
ndepth	Number of rows, columns, depths, cells, and layers
ndepth-method	Number of rows, columns, depths, cells, and layers
ngeom	Number of geometries and subgeometries in a vector
ngeom-method	Number of geometries and subgeometries in a vector
nlevels	Number of categories in a categorical raster
nlevels-method	Number of categories in a categorical raster
nlyr	Number of rows, columns, depths, cells, and layers
nlyr-method	Number of rows, columns, depths, cells, and layers
noise	Remove or retain "noise" in a raster using PCA
noise-method	Remove or retain "noise" in a raster using PCA
nonnacell	Number of NA or non-NA cells in a raster
nonnacell-method	Number of NA or non-NA cells in a raster
not.na	Mathematical operations on each layer of a GRasters
not.na-method	Mathematical operations on each layer of a GRasters
nrow	Number of rows, columns, depths, cells, and layers
nrow-method	Number of rows, columns, depths, cells, and layers
nsubgeom	Number of geometries and subgeometries in a vector
nsubgeom-method	Number of geometries and subgeometries in a vector
nunique	Mathematical operations on two or more GRasters
nunique-method	Mathematical operations on two or more GRasters

-- P --

pairs	Scatterplot of values in each GRaster layer against the others
pairs-method	Scatterplot of values in each GRaster layer against the others
pcs	Retrieve a principal components model from a PCA GRaster
plot	Display a raster or vector
plot-method	Display a raster or vector
plotRGB	Create red-green-blue plot from a raster with RGB layers
plotRGB-method	Create red-green-blue plot from a raster with RGB layers
predict	Make predictions from a linear or generalized linear model to a GRaster
predict-method	Make predictions from a linear or generalized linear model to a GRaster
princomp	Apply a principal component analysis (PCA) to layers of a GRaster
princomp-method	Apply a principal component analysis (PCA) to layers of a GRaster
project	Change the coordinate reference system of a GRaster or GVector
project-method	Change the coordinate reference system of a GRaster or GVector

-- Q --

quantile	Mathematical operations on two or more GRasters
quantile-method	Mathematical operations on two or more GRasters

-- R --

range	Mathematical operations on two or more GRasters
range-method	Mathematical operations on two or more GRasters
rast	Convert a GRaster to a SpatRaster
rast-method	Convert a GRaster to a SpatRaster
rasterize	Convert a GVector to a GRaster
rasterize-method	Convert a GVector to a GRaster
rbind	Combine one or more GVectors
rbind-method	Combine one or more GVectors
regress	Regression intercept, slope, r2, and t-value across each set of cells
regress-method	Regression intercept, slope, r2, and t-value across each set of cells
remove0	Fix issues with geometries of a vector
remove0-method	Fix issues with geometries of a vector
removeAngles	Fix issues with geometries of a vector
removeAngles-method	Fix issues with geometries of a vector
removeBridges	Fix issues with geometries of a vector
removeBridges-method	Fix issues with geometries of a vector
removeDangles	Fix issues with geometries of a vector
removeDangles-method	Fix issues with geometries of a vector
removeDupCentroids	Fix issues with geometries of a vector
removeDupCentroids-method	Fix issues with geometries of a vector
removeDups	Fix issues with geometries of a vector
removeDups-method	Fix issues with geometries of a vector
removeSmallPolys	Fix issues with geometries of a vector
removeSmallPolys-method	Fix issues with geometries of a vector
reorient	Convert degrees between 'north-orientation' and 'east orientation'
reorient-method	Convert degrees between 'north-orientation' and 'east orientation'
replaceNAs	Replace NAs in a data.table or data.frame column, or in a vector
replaceNAs-method	Replace NAs in a data.table or data.frame column, or in a vector
res	Spatial resolution
res-method	Spatial resolution
res3d	Spatial resolution
res3d-method	Spatial resolution
resample	Change the cell size of a GRaster
resample-method	Change the cell size of a GRaster
rnormRast	Create a raster with random values drawn from a normal distribution
rnormRast-method	Create a raster with random values drawn from a normal distribution
round	Mathematical operations on each layer of a GRasters
round-method	Mathematical operations on each layer of a GRasters
rSpatialDepRast	Create a random raster with or without spatial dependence
rSpatialDepRast-method	Create a random raster with or without spatial dependence
ruggedness	Terrain ruggedness index
ruggedness-method	Terrain ruggedness index
runifRast	Create a raster with random values drawn from a uniform distribution
runifRast-method	Create a raster with random values drawn from a uniform distribution
rvoronoi	Create a randomly-positioned tesselation
rvoronoi-method	Create a randomly-positioned tesselation

-- S --

S	Spatial bounds of a GRaster or GVector
S-method	Spatial bounds of a GRaster or GVector
sampleRast	Randomly sample cells from a GRaster
sampleRast-method	Randomly sample cells from a GRaster
scale	Center and scale a GRaster, or the opposite
scale-method	Center and scale a GRaster, or the opposite
scalepop	Center and scale a GRaster, or the opposite
scalepop-method	Center and scale a GRaster, or the opposite
sdpop	Mathematical operations on two or more GRasters
sdpop-method	Mathematical operations on two or more GRasters
segregate	Create one GRaster layer per unique value in a GRaster
segregate-method	Create one GRaster layer per unique value in a GRaster
selectRange	Select values from rasters in a stack based on values in another raster
selectRange-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	Simplify the geometry of a vector
simplifyGeom-method	Simplify the geometry of a vector
sin	Mathematical operations on each layer of a GRasters
sin-method	Mathematical operations on each layer of a GRasters
sineRast	Sine wave rasters
sineRast-method	Sine wave rasters
skewness	Mathematical operations on two or more GRasters
skewness-method	Mathematical operations on two or more GRasters
smoothGeom	Smooth the geometry of a vector
smoothGeom-method	Smooth the geometry of a vector
snap	Fix issues with geometries of a vector
snap-method	Fix issues with geometries of a vector
sources	Name of a raster or vector in a GRASS session
sources-method	Name of a raster or vector in a GRASS session
spatSample	Sample random points from a GRaster or GVector
spatSample-method	Sample random points from a GRaster or GVector
sqrt	Mathematical operations on each layer of a GRasters
sqrt-method	Mathematical operations on each layer of a GRasters
stdev	Mathematical operations on two or more GRasters
stdev-method	Mathematical operations on two or more GRasters
streams	Create stream network
streams-method	Create stream network
stretch	Rescale values in a GRaster
stretch-method	Rescale values in a GRaster
st_as_sf	Convert a GVector to a SpatVector or sf vector
st_as_sf-method	Convert a GVector to a SpatVector or sf vector
st_buffer	Increase/decrease the size of a vector or around non-NA cells of a raster
st_buffer-method	Increase/decrease the size of a vector or around non-NA cells of a raster
st_coordinates	Coordinates of a vector"s features or a raster"s cell centers
st_crs	Coordinate reference system of a GRaster or GVector
st_crs-method	Coordinate reference system of a GRaster or GVector
subset	Subset layers from a GRaster, or specific rows from a GVector
subset-method	Subset layers from a GRaster, or specific rows from a GVector
subst	Replace a specific value(s) in a GRaster
subst-method	Replace a specific value(s) in a GRaster
sum	Mathematical operations on two or more GRasters
sum-method	Mathematical operations on two or more GRasters
sun	Solar radiance and irradiance

-- T --

tail	Return first or last part of the data frame of a GVector
tail-method	Return first or last part of the data frame of a GVector
tan	Mathematical operations on each layer of a GRasters
tan-method	Mathematical operations on each layer of a GRasters
terrain	Slope, aspect, curvature, and partial slopes
terrain-method	Slope, aspect, curvature, and partial slopes
thinLines	Reduce linear features on a raster so linear features are 1 cell wide
thinLines-method	Reduce linear features on a raster so linear features are 1 cell wide
thinPoints	Reduce number of points in same raster cell
thinPoints-method	Reduce number of points in same raster cell
tiles	Divide a GRaster into spatially exclusive subsets
tiles-method	Divide a GRaster into spatially exclusive subsets
top	Spatial bounds of a GRaster or GVector
top-method	Spatial bounds of a GRaster or GVector
topology	Topology (2- or 3-dimensions) of a GRaster or GVector
topology-method	Topology (2- or 3-dimensions) of a GRaster or GVector
trim	Remove rows and columns from a raster that are all NA
trim-method	Remove rows and columns from a raster that are all NA
trunc	Mathematical operations on each layer of a GRasters
trunc-method	Mathematical operations on each layer of a GRasters

-- U --

union	Combine two GVectors
union-method	Combine two GVectors
unscale	Center and scale a GRaster, or the opposite
unscale-method	Center and scale a GRaster, or the opposite
update	Refresh metadata in a GRaster or GVector
update-method	Refresh metadata in a GRaster or GVector

-- V --

var	Mathematical operations on two or more GRasters
var-method	Mathematical operations on two or more GRasters
varpop	Mathematical operations on two or more GRasters
varpop-method	Mathematical operations on two or more GRasters
vect	Convert a GVector to a SpatVector or sf vector
vect-method	Convert a GVector to a SpatVector or sf vector
vegIndex	Vegetation indices from surface reflectance
vegIndex-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	Voronoi tessellation
voronoi-method	Voronoi tessellation

-- W --

W	Spatial bounds of a GRaster or GVector
W-method	Spatial bounds of a GRaster or GVector
wetness	Topographic wetness index
wetness-method	Topographic wetness index
which.max	Mathematical operations on two or more GRasters
which.max-method	Mathematical operations on two or more GRasters
which.min	Mathematical operations on two or more GRasters
which.min-method	Mathematical operations on two or more GRasters
writeRaster	Save a GRaster to disk
writeRaster-method	Save a GRaster to disk
writeVector	Save a GVector to disk
writeVector-method	Save a GVector to disk

-- X --

xor	Select parts of polygons not shared between two GVectors
xor-method	Select parts of polygons not shared between two GVectors
xres	Spatial resolution
xres-method	Spatial resolution

-- Y --

yres	Spatial resolution
yres-method	Spatial resolution

-- Z --

zext	Spatial bounds of a GRaster or GVector
zext-method	Spatial bounds of a GRaster or GVector
zonal	Statistics on cells of a GRaster stratified by cells of another raster
zonal-method	Statistics on cells of a GRaster stratified by cells of another raster
zonalGeog	Geographic statistics for sets of cells with the same values
zonalGeog-method	Geographic statistics for sets of cells with the same values
zres	Spatial resolution
zres-method	Spatial resolution

-- misc --

$	Subset a GRaster layer, or return values from a column of a GVector's table
$-method	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
$<--method	Replace a raster layer or a column from a vector's data table
%in%	Find which cells of a GRaster match certain values
%in%-method	Find which cells of a GRaster match certain values
%notin%	Find which cells of a GRaster match certain values
%notin%-method	Find which cells of a GRaster match certain values
[	Subset geometries of a GVector
[-method	Subset geometries of a GVector
[<-	Replace values of a GRaster
[<--method	Replace values of a GRaster
[[	Subset layers from a GRaster, or specific columns from a GVector
[[-method	Subset layers from a GRaster, or specific columns from a GVector
[[<-	Replace layers of a GRaster
[[<--method	Replace layers of a GRaster