transform Raster* to data frame ready for ggplot2
Usage
as_data(r, na.rm = FALSE, melt = TRUE)
Arguments
- r
Raster* object transform
- na.rm
boolean should NA pixels be removed
- melt
boolean should the raster be melted (default is TRUE)
Value
a data frame containing x, y, the coordinates; variable, the layer names; value the pixel value.
Details
melt is used to facilitate ploting of raster stacks