terra: summary – R documentation

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summary

Description

Compute summary statistics (min, max, mean, and quartiles) for SpatRaster using base summary method. A sample is used for very large files.

Usage

## S4 method for signature 'SpatRaster'
summary(object, size=100000, warn=TRUE, ...)

## S4 method for signature 'SpatVector'
summary(object, ...)

Arguments

`object`	SpatRaster or SpatVector
`size`	positive integer. Size of a regular sample used for large datasets (see `spatSample`)
`warn`	logical. If `TRUE` a warning is given if a sample is used
`...`	additional arguments passed on to the base `summary method`

Value

matrix with (an estimate of) the median, minimum and maximum values, the first and third quartiles, and the number of cells with NA values

Examples

set.seed(0)
r <- rast(nrow=10, ncol=10, nlyr=3)
values(r) <- runif(nlyr(r)*ncell(r))
summary(r)

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