Faster Raster and Spatial Vector Processing Using 'GRASS GIS'


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Documentation for package ‘fasterRaster’ version 8.4.0.3

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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