terra (version 1.8-5)

match: 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

Value

SpatRaster

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

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)