terra: resample – R documentation

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resample

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

Description

resample transfers values between SpatRaster objects that do not align (have a different origin and/or resolution). See project to change the coordinate reference system (crs).

If the origin and crs are the same, you should consider using these other functions instead: aggregate, disaggregate, expand or crop.

Usage

## S4 method for signature 'SpatRaster,SpatRaster'
resample(x, y, method="bilinear", filename="", ...)

Arguments

`x`	SpatRaster to be resampleed
`y`	SpatRaster that `x` should be resampled to
`method`	character. Method used for estimating the new cell values. One of: `near`: nearest neighbour. This method is fast, and the preferred method if the cell values represent classes. It is not a good choice for continuous values. `bilinear`: bilinear interpolation. Default. `cubic`: cubic interpolation. `cubicspline`: cubic spline interpolation. `lanczos`: Lanczos windowed sinc resampling.
`filename`	character. Output filename
`...`	additional arguments for writing files as in `writeRaster`

Value

SpatRaster

Examples

r <- rast(nrow=3, ncol=3, xmin=0, xmax=10, ymin=0, ymax=10)
values(r) <- 1:ncell(r)
s <- rast(nrow=25, ncol=30, xmin=1, xmax=11, ymin=-1, ymax=11)
x <- resample(r, s, method="bilinear")

opar <- par(no.readonly =TRUE)
par(mfrow=c(1,2))
plot(r)
plot(x)
par(opar)

terra

Spatial Data Analysis

v1.2-10

GPL (>= 3)

Authors

Robert J. Hijmans [cre, aut] (<https://orcid.org/0000-0001-5872-2872>), Roger Bivand [ctb] (<https://orcid.org/0000-0003-2392-6140>), Karl Forner [ctb], Jeroen Ooms [ctb] (<https://orcid.org/0000-0002-4035-0289>), Edzer Pebesma [ctb] (<https://orcid.org/0000-0001-8049-7069>)

Initial release

2021-05-12