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terra (version 1.8-15)

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

1.8-15

License

GPL (>= 3)

Homepage

https://rspatial.org/

Maintainer

Robert Hijmans

Last Published

January 24th, 2025

Functions in terra (1.8-15)

Compare two SpatRasters for equality

Layers representing colors

Add points, lines, or polygons to a map

Coerce a Spat* object to a list

Get cell numbers

Box plot of SpatRaster data

Focal weights matrix

Set the NA flag

Bar plot of a SpatRaster

Replace values with values from another object

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

Conversion to a SpatVector of points

Erase parts of a SpatVector object

Conversion to a SpatVector of polygons

Spatial interpolation

Apply a function to the cells of a SpatRaster

Classify (or reclassify) cell values

Geographic distance

SpatExtent-class

Class "SpatExtent"

clamp time series data

Adjacent cells or polygons

Perspective plot

Aggregate raster or vector data

ifelse for SpatRasters

Make a VRT header file

Compare-methods

Compare and logical methods

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

Detect boundaries (edges)

Data type of a SpatRaster or SpatVector

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

Query by clicking on a map

Align a SpatExtent

Convex, concave, rectangular and circular hulls

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

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

Compare geometries

SpatRaster image method

Frequency table

SpatRaster-class

SpatRaster class

SpatVector-class

Class "SpatVector"

Create, get or set a SpatExtent

depth of SpatRaster layers

tighten SpatRaster or SpatRasterDataset objects

Three-dimensional focal values

Get the geometry (coordinates) of a SpatVector

Change values in a file

Flip or reverse a raster

nearby geometries

Animate a SpatRaster

Interpolate points using a moving window

Create a buffer around vector geometries or raster patches

Active category

Concatenate categorical rasters

Factors to numeric

Focal function across two layers

Geometry type of a SpatVector

Memory available and needed

Combine geometries

add a custom legend

Make an inset map

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

Names of Spat* objects

Number of immediate adjacent cells flowing into each cell

Categorical rasters

Coerce to a "raster" object

Change values in-place

Get or set a coordinate reference system

Two argument arc-tangent

row/col sums and means for SpatRaster

Add additional nodes to lines or polygons

Make a dot-density map

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

Data sources of a SpatRaster

Raster value types

Area covered by each raster cell

Plot a SpatExtent

Combine SpatRaster or SpatVector objects

Virtual Raster Dataset

SpatRaster or SpatVector to data.frame

Conversion to a SpatVector of lines

color palettes for mapping

Check for longitude/latitude crs

Split a SpatRaster or SpatVector

Fill time gaps in a SpatRaster

deprecated methods

Coercion to vector, matrix or array

mosaic SpatRasters

autocorrelation

Spatial autocorrelation

global statistics

Remove holes from polygons

Compare two SpatRasters for equality

Subdivide a raster or polygons

Rotate data along longitude

extract values along lines

Create a SpatVectorCollection

Create a graticule

Get the coordinates of SpatVector geometries or SpatRaster cells

Rolling (moving) functions

Plot a graticule

Pit Finder in a Flow Dir SpatRaster for Watershed Extraction

Compute focal values with an iterating C++ function

Value matching for SpatRasters

Set the values of raster cells or of geometry attributes

merge SpatRasters by timelines to create a single timeseries

normalize.longitude

normalize vector data that crosses the dateline

Disaggregate raster cells or vector geometries

flowAccumulation

Flow accumulation

SpatRaster PCA with prcomp

Make tiles or get their extents

Pairs plot (matrix of scatterplots)

Check if a SpatExtent or SpatVector is empty

Cut out a geographic subset

Lagged differences

Extract values from a SpatRaster, SpatVector or SpatExtent

Dimensions of a SpatRaster or SpatVector and related objects

Check or fix polygon or extent validity

Draw a polygon, line, extent, or points

Get the coordinates of the extent of a map

head and tail of a SpatRaster or SpatVector

Replicate layers

Mask values in a SpatRaster or SpatVector

Number of segments

Add halo-ed text to a plot

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

Set or get metadata

Find gaps between polygons

replace cell values

Nearest neighbor interpolation

Detect patches (clumps) of cells

Extract values for a range of layers from a SpatRaster

time of SpatRaster layers

Initialize a SpatRaster with values

Focal regression

Scale (gain) and offset

Spatial model predictions

Replace with $<-

SpatVector geometric properties

Correlation and (weighted) covariance

Get or compute the minimum and maximum cell values

GDAL version, supported file formats, and cache size

Take a regular sample

List or remove layers from a vector file

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

wrap and unwrap

Create a SpatRaster

Rasterize points with a moving window

Zoom in on a map

Rasterize vector data

Scale values linearly

terrain characteristics

Compute surface area from elevation data

Trim a SpatRaster

Combine row, column, and layer numbers

SpatRaster wrap with caching options

Extract values from a SpatRaster

Create SpatVector objects

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

Rasterize geometric properties of vector data

SpatRaster PCA with princomp

Zonal statistics

Compare coordinate reference systems

Rectify a SpatRaster

force counter-clockwise polygons

saveRDS and serialize for SpatVector and SpatRaster*

Perimeter or length

Read from, or write to, file

Change the coordinate reference system

Get focal values

Check for rotation

Distance on a grid

Subset a SpatRaster or a SpatVector

add a grid to a map made with terra

Catchment delineation

Union SpatVector or SpatExtent objects

General mathematical methods

Add labels to a map

Create a SpatRasterDataset

Quantiles of spatial data

units of SpatRaster or SpatRasterDataSet

Read all cell values into memory

Vector topology methods

Weighted mean of layers

select cells with high or low values

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

Fill layers with a range

Find and remove geometries that are NA

Linear units of the coordinate reference system

Query a SpatVectorProxy object

Replace layers or variables

Plot with leaflet

Cell level regression

Subset a SpatRaster or a SpatVector

Sort a SpatRaster or SpatVector

simplifyGeom geometries

Compute a viewshed

Create a SpatRasterCollection

Get or set single values of an extent

Scatterplot of two SpatRaster layers

Apply a function to subsets of layers of a SpatRaster

Apply a function to the cells of a two SpatRasters

Spatial relationships between geometries

Description of the methods in the terra package

Voronoi diagram and Delaunay triangles

Subset a SpatRaster or a SpatVector

Symmetrical difference

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

Cell values and geometry attributes

Write SpatVector data to a file

filenames of VRT tiles

Where are the cells with the min or max values?

Spatial selection

Replace values of a SpatRaster

Write raster data to a NetCDF file

spin a SpatVector

Temporary files

variable and long variable names

Which cells are TRUE?

Write raster data to a file