rowSums.Rd
Sum values of Raster objects by row or column.
# S4 method for class 'Raster'
rowSums(x, na.rm=FALSE, dims=1L,...)
# S4 method for class 'Raster'
colSums(x, na.rm=FALSE, dims=1L,...)
vector (if x
is a RasterLayer) or matrix
See cellStats
for summing all cells values