terra (version 1.7-83)

segregate: segregate

Description

Create a SpatRaster with a layer for each class (value, or subset of the values) in the input SpatRaster. For example, if the input has vegetation types, this function will create a layer (presence/absence; dummy variable) for each of these classes.

This is called "one-hot encoding" or "dummy encoding" (for a dummy encoding scheme you can remove (any) one of the output layers as it is redundant).

Usage

# S4 method for SpatRaster
segregate(x, classes=NULL, keep=FALSE, other=0, round=FALSE, digits=0, filename="", ...)

Value

SpatRaster

Arguments

x

SpatRaster

classes

numeric. The values (classes) for which layers should be made. If NULL all classes are used

keep

logical. If TRUE, cells that are of the class represented by a layer get that value, rather than a value of 1

other

numeric. Value to assign to cells that are not of the class represented by a layer

round

logical. Should the values be rounded first?

digits

integer. Number of digits to round the values to

filename

character. Output filename

...

additional arguments for writing files as in writeRaster

Examples

r <- rast(nrows=5, ncols=5)
values(r) <- rep(c(1:4, NA), each=5)
b <- segregate(r)
bb <- segregate(r, keep=TRUE, other=NA)