subst.RdSubstitute(replace) cell values of a SpatRaster with a new value. See classify for more complex/flexible replacement.
# S4 method for SpatRaster
subst(x, from, to, others=NULL, raw=FALSE, filename="", ...)SpatRaster
numeric value(s). Normally a vector of the same length as `to`. If x has multiple layers, it can also be a matrix of numeric value(s) where nrow(x) == length(to). In that case the output has a single layer, with values based on the combination of the values of the input layers
numeric value(s). Normally a vector of the same length as `from`. If x has a single layer, it can also be a matrix of numeric value(s) where nrow(x) == length(from). In that case the output has multiple layers, one for each column in to
numeric. If not NULL all values that are not matched are set to this value. Otherwise they retain their original value.
logical. If TRUE, the values in from and to are the raw cell values, not the categorical labels. Only relevant if is.factor(x)
character. Output filename
Additional arguments for writing files as in writeRaster
SpatRaster
r <- rast(ncols=5, nrows=5, xmin=0, xmax=1, ymin=0, ymax=1, crs="")
r <- init(r, 1:6)
x <- subst(r, 3, 7)
x <- subst(r, 2:3, NA)
x <- subst(x, NA, 10)
# multiple output layers
z <- subst(r, 2:3, cbind(20,30))
# multiple input layers
rr <- c(r, r+1, r+2)
m <- rbind(c(1:3), c(3:5))
zz <- subst(rr, m, c(100, 200))