terra: modal – R documentation

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modal

modal value

Description

Compute the mode for each cell across the layers of a SpatRaster. The mode, or modal value, is the most frequent value in a set of values.

Usage

## S4 method for signature 'SpatRaster'
modal(x, ..., ties="first", na.rm=FALSE, filename="", overwrite=FALSE, wopt=list())

Arguments

`x`	SpatRaster
`...`	additional argument of the same type as `x` or numeric
`ties`	character. Indicates how to treat ties. Either "random", "lowest", "highest", "first", or "NA"
`na.rm`	logical. If `TRUE`, `NA` values are ignored. If `FALSE`, `NA` is returned if `x` has any `NA` values
`filename`	character. Output filename
`overwrite`	logical. If `TRUE`, `filename` is overwritten
`wopt`	list with named options for writing files as in `writeRaster`

Value

SpatRaster

Examples

r <- rast(system.file("ex/logo.tif", package="terra"))   
r <- c(r/2, r, r*2)
m <- modal(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