match: Value matching for SpatRasters

In terra: Spatial Data Analysis

Value matching for SpatRasters

Description

match returns a SpatRaster with the position of the matched values. The cell values are the index of the table argument.

%in% returns a 0/1 (FALSE/TRUE) SpatRaster indicating if the cells values were matched or not.

Usage

match(x, table, nomatch = NA_integer_, incomparables = NULL)

x %in% table

Arguments

x	SpatRaster
table	vector of the values to be matched against
nomatch	the value to be returned in the case when no match is found. Note that it is coerced to integer
incomparables	a vector of values that cannot be matched. Any value in x matching a value in this vector is assigned the nomatch value. For historical reasons, FALSE is equivalent to NULL

Value

SpatRaster

See Also

app, match

Examples

r <- rast(nrows=10, ncols=10)
values(r) <- 1:100
m <- match(r, c(5:10, 50:55))
n <- r %in% c(5:10, 50:55)

terra documentation built on Oct. 14, 2024, 5:07 p.m.