motif (version 0.6.5)

lsp_add_examples: Adds spatial data of each region in an lsp or sf object

Description

Adds spatial data of each region in an lsp or sf object. The output is an lsp or sf object with an additional column "region". See examples.

Usage

lsp_add_examples(x, y, window = NULL)
# S3 method for lsp
lsp_add_examples(x, y, window = NULL)
# S3 method for sf
lsp_add_examples(x, y, window = NULL)

Value

The input object with a new column "region". The "region" column is a list with a raster extracted for each row.

Arguments

x

Object of class lsp - usually a subset of the output of lsp_signature() or an object of class sf - usually a subset of the output of lsp_search()

y

Object of class stars, stars_proxy, or terra's SpatRaster.

window

Specifies areas for analysis. It can be either: NULL or an sf object. The sf object is only needed for adding examples of irregular regions.

Examples

library(stars)

landcover = read_stars(system.file("raster/landcover2015s.tif", package = "motif"))

landcover_coma = lsp_signature(landcover, type = "coma", threshold = 0.9, window = 100)
selected_coma = subset(landcover_coma, id %in% c(5, 10, 15, 35))
selected_coma

selected_coma = lsp_add_examples(x = selected_coma, y = landcover)
selected_coma

plot(selected_coma$region[[1]])
plot(selected_coma$region[[4]])

# \donttest{
# larger data example
library(stars)

landcover = read_stars(system.file("raster/landcover2015.tif", package = "motif"))

landcover_coma = lsp_signature(landcover, type = "coma", threshold = 0.9, window = 100)
selected_coma = subset(landcover_coma, id %in% c(5, 80, 1971, 2048))
selected_coma

selected_coma = lsp_add_examples(x = selected_coma, y = landcover)
selected_coma

plot(selected_coma$region[[1]])
plot(selected_coma$region[[4]])
# }