scale.RdCenter and/or scale raster data. For details see scale
# S4 method for SpatRaster
scale(x, center=TRUE, scale=TRUE)SpatRaster
logical or numeric. If TRUE, centering is done by subtracting the layer means (omitting NAs), and if FALSE, no centering is done. If center is a numeric vector (recycled to nlyr(x)), then each layer of x has the corresponding value from center subtracted from it.
logical or numeric. If TRUE, scaling is done by dividing the (centered) layers of x by their standard deviations if center is TRUE, and the root mean square otherwise. If scale is FALSE, no scaling is done. If scale is a numeric vector (recycled to nlyr(x)), each layer of x is divided by the corresponding value. Scaling is done after centering.
SpatRaster
r <- rast(system.file("ex/logo.tif", package="terra"))
s <- scale(r)
## the equivalent, computed in steps
m <- global(r, "mean")
rr <- r - m[,1]
rms <- global(rr, "rms")
ss <- rr / rms[,1]