Pairs plot (matrix of scatterplots) — pairs • terra

Pair plots of layers in a SpatRaster. This is a wrapper around graphics function pairs.

Usage

# S4 method for class 'SpatRaster'
pairs(x, hist=TRUE, cor=TRUE, use="pairwise.complete.obs", maxcells=100000, ...)

Arguments

x: SpatRaster
hist: logical. If TRUE a histogram of the values is shown on the diagonal
cor: logical. If TRUE the correlation coefficient is shown in the upper panels
use: argument passed to the cor function
maxcells: integer. Number of pixels to sample from each layer of a large SpatRaster
...: additional arguments (graphical parameters)

See also

boxplot, hist

Examples

r <-rast(system.file("ex/elev.tif", package="terra"))
s <- c(r, 1/r, sqrt(r))
names(s) <- c("elevation", "inverse", "sqrt") 
pairs(s)


# to make indvidual histograms:
hist(r)

# or scatter plots:
plot(s[[1]], s[[2]])