Learn R Programming

terra (version 1.8-29)

Spatial Data Analysis

Description

Methods for spatial data analysis with vector (points, lines, polygons) and raster (grid) data. Methods for vector data include geometric operations such as intersect and buffer. Raster methods include local, focal, global, zonal and geometric operations. The predict and interpolate methods facilitate the use of regression type (interpolation, machine learning) models for spatial prediction, including with satellite remote sensing data. Processing of very large files is supported. See the manual and tutorials on to get started. 'terra' replaces the 'raster' package ('terra' can do more, and it is faster and easier to use).

Copy Link

Version

Install

install.packages('terra')

Monthly Downloads

172,117

Version

1.8-29

License

GPL (>= 3)

Homepage

https://rspatial.org/

Maintainer

Robert Hijmans

Last Published

February 26th, 2025

Functions in terra (1.8-29)

Set the NA flag

Number of immediate adjacent cells flowing into each cell

Adjacent cells or polygons

SpatVector-class

Class "SpatVector"

Add (in place) a SpatRaster to another SpatRaster or to a SpatRasterDataset or SpatRasterCollection

Active category

SpatExtent-class

Class "SpatExtent"

Layers representing colors

SpatRaster-class

SpatRaster class

Apply a function to the cells of a SpatRaster

Conversion to a SpatVector of lines

Align a SpatExtent

SpatRaster or SpatVector to data.frame

Estimate values for cell values that are NA by interpolating between layers

Compare two SpatRasters for equality

Create a text representation of (the skeleton of) an object

Animate a SpatRaster

Conversion to a SpatVector of points

Aggregate raster or vector data

Two argument arc-tangent

Coerce a Spat* object to a list

Detect boundaries (edges)

Bar plot of a SpatRaster

Box plot of SpatRaster data

Conversion to a SpatVector of polygons

Factors to numeric

Area covered by each raster cell

Concatenate categorical rasters

clamp time series data

Combine geometries

Cut out a geographic subset

Create a buffer around vector geometries or raster patches

Classify (or reclassify) cell values

Query by clicking on a map

autocorrelation

Spatial autocorrelation

Coerce to a "raster" object

Combine SpatRaster or SpatVector objects

Replace values with values from another object

Get cell numbers

Add additional nodes to lines or polygons

Disaggregate raster cells or vector geometries

Coercion to vector, matrix or array

tighten SpatRaster or SpatRasterDataset objects

Geographic distance

Get the coordinates of SpatVector geometries or SpatRaster cells

Subdivide a raster or polygons

Convex, concave, rectangular and circular hulls

Lagged differences

Dimensions of a SpatRaster or SpatVector and related objects

Make a dot-density map

Erase parts of a SpatVector object

Create, get or set a SpatExtent

Get the expanse (area) of individual polygons or for all (summed) raster cells

Categorical rasters

Remove holes from polygons

Focal regression

Get focal values

Get the geometry (coordinates) of a SpatVector

Focal weights matrix

Compare-methods

Compare and logical methods

Focal function across two layers

Compare geometries

Geometry type of a SpatVector

Draw a polygon, line, extent, or points

Fill time gaps in a SpatRaster

deprecated methods

Change values in-place

Get or set a coordinate reference system

Find gaps between polygons

GDAL version, supported file formats, and cache size

Make an inset map

Compare two SpatRasters for equality

Initialize a SpatRaster with values

Impose the geometry of a SpatRaster to those in a SpatRasterCollection.

Raster value types

Check if a SpatExtent or SpatVector is empty

Correlation and (weighted) covariance

Interpolate points using a moving window

add a custom legend

Flip or reverse a raster

Extract values from a SpatRaster

Three-dimensional focal values

General mathematical methods

Compute focal values with an iterating C++ function

Check for rotation

Memory available and needed

Nearest neighbor interpolation

force counter-clockwise polygons

Check or fix polygon or extent validity

Merge SpatRasters, or merge a SpatVector with a data.frame

normalize.longitude

normalize vector data that crosses the dateline

Data type of a SpatRaster or SpatVector

Pit Finder in a Flow Dir SpatRaster for Watershed Extraction

merge SpatRasters by timelines to create a single timeseries

Plot with leaflet

SpatRaster PCA with princomp

depth of SpatRaster layers

Add halo-ed text to a plot

head and tail of a SpatRaster or SpatVector

Set or get metadata

mosaic SpatRasters

Get or compute the minimum and maximum cell values

extract values along lines

Check for rotation

Check for longitude/latitude crs

Frequency table

Apply a function to layers of a SpatRaster, or sub-datasets of a SpatRasterDataset

Find and remove geometries that are NA

ifelse for SpatRasters

SpatRaster image method

Spatial interpolation

Mask values in a SpatRaster or SpatVector

Make tiles or get their extents

Make a VRT header file

Extract values for a range of layers from a SpatRaster

flowAccumulation

Flow accumulation

Names of Spat* objects

Detect patches (clumps) of cells

Plot a SpatExtent

Plot a graticule

Value matching for SpatRasters

SpatRaster PCA with prcomp

Rectify a SpatRaster

Cell level regression

Number of segments

nearby geometries

Rolling (moving) functions

Spatial model predictions

global statistics

Change the coordinate reference system

time of SpatRaster layers

Catchment delineation

Temporary files

Spatial relationships between geometries

Create a graticule

add a grid to a map made with terra

Distance on a grid

Linear units of the coordinate reference system

Add points, lines, or polygons to a map

Replicate layers

Create a SpatRasterDataset

Red-Green-Blue plot of a multi-layered SpatRaster

Get the coordinates of the extent of a map

Quantiles of spatial data

Pairs plot (matrix of scatterplots)

color palettes for mapping

Perimeter or length

Weighted mean of layers

Compare coordinate reference systems

Write SpatVector data to a file

Query a SpatVectorProxy object

Apply a function to the cells of a two SpatRasters

Perspective plot

simplifyGeom geometries

Subset a SpatRaster or a SpatVector

Subset a SpatRaster or a SpatVector

Create a SpatRaster

Fill layers with a range

Rasterize vector data

Compute surface area from elevation data

Replace with $<-

Rasterize geometric properties of vector data

units of SpatRaster or SpatRasterDataSet

Combine row, column, and layer numbers

Take a regular sample

Rasterize points with a moving window

Scatterplot of two SpatRaster layers

Replace layers or variables

Rotate data along longitude

Change values in a file

Scale values linearly

Scale (gain) and offset

row/col sums and means for SpatRaster

Virtual Raster Dataset

Read from, or write to, file

Replace values of a SpatRaster

Transfer values of a SpatRaster to another one with a different geometry

Apply a terra function that takes only a single layer and returns a SpatRaster to all layers of a SpatRaster

Select the values of a range of layers, as specified by cell values in another SpatRaster

saveRDS and serialize for SpatVector and SpatRaster*

Spatial selection

select cells with high or low values

filenames of VRT tiles

Subset a SpatRaster or a SpatVector

Sort a SpatRaster or SpatVector

Data sources of a SpatRaster

Set the values of raster cells or of geometry attributes

replace cell values

Where are the cells with the min or max values?

Extract values from a SpatRaster, SpatVector or SpatExtent

Which cells are TRUE?

Apply a function to subsets of layers of a SpatRaster

Create a SpatRasterCollection

Create a SpatVectorCollection

Symmetrical difference

spin a SpatVector

Split a SpatRaster or SpatVector

Read all cell values into memory

Vector topology methods

Description of the methods in the terra package

terrain characteristics

Add labels to a map

Create SpatVector objects

Union SpatVector or SpatExtent objects

List or remove layers from a vector file

Cell values and geometry attributes

SpatVector geometric properties

variable and long variable names

wrap and unwrap

SpatRaster wrap with caching options

Get or set single values of an extent

Trim a SpatRaster

Compute a viewshed

Voronoi diagram and Delaunay triangles

Write raster data to a NetCDF file

Write raster data to a file

Zonal statistics

Zoom in on a map

Coordinates from a row, column or cell number and vice versa