Flip the values of a Raster* object by inverting the order of the rows (direction=y) or the columns direction='x'.
flip(x, direction, ...)
Raster* object
Character. 'y' or 'x'; or 1 (=x) or 2 (=y)
Additional arguments as for writeRaster
RasterLayer or RasterBrick
# NOT RUN {
r <- raster(nrow=18, ncol=36)
m <- matrix(1:ncell(r), nrow=18)
r[] <- as.vector(t(m))
rx <- flip(r, direction='x')
r[] <- as.vector(m)
ry <- flip(r, direction='y')
# }
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