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terra (version 1.8-10)

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).

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Version

Install

install.packages('terra')

Monthly Downloads

160,039

Version

1.8-10

License

GPL (>= 3)

Homepage

https://rspatial.org/

Maintainer

Robert Hijmans

Last Published

January 14th, 2025

Functions in terra (1.8-10)

Layers representing colors

Set the NA flag

SpatExtent-class

Class "SpatExtent"

SpatRaster-class

SpatRaster class

Number of immediate adjacent cells flowing into each cell

SpatVector-class

Class "SpatVector"

Active category

Apply a function to the cells of a SpatRaster

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

SpatRaster or SpatVector to data.frame

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

Bar plot of a SpatRaster

Conversion to a SpatVector of lines

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

Conversion to a SpatVector of polygons

Coerce to a "raster" object

Compare two SpatRasters for equality

Animate a SpatRaster

Aggregate raster or vector data

Align a SpatExtent

Detect boundaries (edges)

Box plot of SpatRaster data

Create a buffer around vector geometries or raster patches

Coerce a Spat* object to a list

clamp time series data

Conversion to a SpatVector of points

Get cell numbers

Factors to numeric

Area covered by each raster cell

Concatenate categorical rasters

Coercion to vector, matrix or array

tighten SpatRaster or SpatRasterDataset objects

Replace values with values from another object

Two argument arc-tangent

autocorrelation

Spatial autocorrelation

Get the coordinates of SpatVector geometries or SpatRaster cells

Combine geometries

Combine SpatRaster or SpatVector objects

Convex, concave, rectangular and circular hulls

Add additional nodes to lines or polygons

deprecated methods

Classify (or reclassify) cell values

Compare-methods

Compare and logical methods

Query by clicking on a map

Compare geometries

extract values along lines

Extract values for a range of layers from a SpatRaster

Three-dimensional focal values

Erase parts of a SpatVector object

Disaggregate raster cells or vector geometries

Categorical rasters

Geographic distance

Get or set a coordinate reference system

Remove holes from polygons

Cut out a geographic subset

Compute focal values with an iterating C++ function

Subdivide a raster or polygons

Focal regression

Data type of a SpatRaster or SpatVector

Lagged differences

Get focal values

Dimensions of a SpatRaster or SpatVector and related objects

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

Make a dot-density map

add a grid to a map made with terra

depth of SpatRaster layers

Draw a polygon, line, extent, or points

Distance on a grid

flowAccumulation

Flow accumulation

Create, get or set a SpatExtent

Check for longitude/latitude crs

Fill time gaps in a SpatRaster

Flip or reverse a raster

Get the geometry (coordinates) of a SpatVector

Check for rotation

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

Geometry type of a SpatVector

Correlation and (weighted) covariance

Extract values from a SpatRaster

Find gaps between polygons

GDAL version, supported file formats, and cache size

Add halo-ed text to a plot

Focal weights matrix

Focal function across two layers

color palettes for mapping

Mask values in a SpatRaster or SpatVector

Number of segments

Add points, lines, or polygons to a map

Make tiles or get their extents

Compare two SpatRasters for equality

Spatial interpolation

head and tail of a SpatRaster or SpatVector

merge SpatRasters by timelines to create a single timeseries

force counter-clockwise polygons

Raster value types

Frequency table

Plot with leaflet

global statistics

ifelse for SpatRasters

Check if a SpatExtent or SpatVector is empty

Find and remove geometries that are NA

Create a graticule

Names of Spat* objects

SpatRaster image method

Perspective plot

Change values in-place

Make a VRT header file

Make an inset map

Pit Finder in a Flow Dir SpatRaster for Watershed Extraction

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

Check or fix polygon or extent validity

Get the coordinates of the extent of a map

Initialize a SpatRaster with values

Set or get metadata

Create a SpatRaster

Read from, or write to, file

Rasterize points with a moving window

Interpolate points using a moving window

Nearest neighbor interpolation

Combine row, column, and layer numbers

row/col sums and means for SpatRaster

Pairs plot (matrix of scatterplots)

Value matching for SpatRasters

add a custom legend

Get or compute the minimum and maximum cell values

Compare coordinate reference systems

Rectify a SpatRaster

General mathematical methods

Linear units of the coordinate reference system

Replace layers or variables

mosaic SpatRasters

Memory available and needed

Replace values of a SpatRaster

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

Data sources of a SpatRaster

Plot a graticule

nearby geometries

normalize.longitude

normalize vector data that crosses the dateline

Spatial selection

spin a SpatVector

SpatRaster PCA with prcomp

Replicate layers

Replace with $<-

Detect patches (clumps) of cells

Perimeter or length

Subset a SpatRaster or a SpatVector

terrain characteristics

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

Get or set single values of an extent

Plot a SpatExtent

Add labels to a map

Description of the methods in the terra package

Subset a SpatRaster or a SpatVector

Change the coordinate reference system

Read all cell values into memory

Query a SpatVectorProxy object

Spatial model predictions

SpatRaster wrap with caching options

SpatRaster PCA with princomp

Vector topology methods

Trim a SpatRaster

Quantiles of spatial data

Weighted mean of layers

Fill layers with a range

Where are the cells with the min or max values?

Cell level regression

Take a regular sample

Rasterize vector data

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

Spatial relationships between geometries

Subset a SpatRaster or a SpatVector

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

Create SpatVector objects

Which cells are TRUE?

Rotate data along longitude

Rasterize geometric properties of vector data

List or remove layers from a vector file

Union SpatVector or SpatExtent objects

wrap and unwrap

Rolling (moving) functions

Scale values linearly

Scatterplot of two SpatRaster layers

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

Symmetrical difference

Scale (gain) and offset

Set the values of raster cells or of geometry attributes

Create a SpatVectorCollection

Extract values from a SpatRaster, SpatVector or SpatExtent

Create a SpatRasterDataset

select cells with high or low values

replace cell values

Catchment delineation

Compute surface area from elevation data

Compute a viewshed

Virtual Raster Dataset

saveRDS and serialize for SpatVector and SpatRaster*

variable and long variable names

Cell values and geometry attributes

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

Create a SpatRasterCollection

Apply a function to subsets of layers of a SpatRaster

Change values in a file

simplifyGeom geometries

SpatVector geometric properties

time of SpatRaster layers

Voronoi diagram and Delaunay triangles

Write raster data to a file

Sort a SpatRaster or SpatVector

units of SpatRaster or SpatRasterDataSet

Write raster data to a NetCDF file

Split a SpatRaster or SpatVector

Zoom in on a map

Temporary files

filenames of VRT tiles

Write SpatVector data to a file

Apply a function to the cells of a two SpatRasters

Zonal statistics