cut_stars: cut methods for stars objects

In stars: Spatiotemporal Arrays, Raster and Vector Data Cubes

cut methods for stars objects

Description

cut methods for stars objects

Usage

## S3 method for class 'array'
cut(x, breaks, ...)

## S3 method for class 'matrix'
cut(x, breaks, ...)

## S3 method for class 'stars'
cut(x, breaks, ...)

Arguments

x	see cut
breaks	see cut
...	see cut

Details

R's factor only works for vectors, not for arrays or matrices. This is a work-around (or hack?) to keep the factor levels generated by cut and use them in plots.

Value

an array or matrix with a levels attribute; see details

Examples

tif = system.file("tif/L7_ETMs.tif", package = "stars")
x = read_stars(tif)
cut(x, c(0, 50, 100, 255))
cut(x[,,,1], c(0, 50, 100, 255))
plot(cut(x[,,,1], c(0, 50, 100, 255)))
tif = system.file("tif/L7_ETMs.tif", package = "stars")
x1 = read_stars(tif)
(x1_cut = cut(x1, breaks = c(0, 50, 100, Inf)))  # shows factor in summary
plot(x1_cut[,,,c(3,6)]) # propagates through [ and plot

stars documentation built on May 29, 2024, 8:59 a.m.