modal value — modal • terra

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.

# S4 method for class '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

SpatRaster

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