Description Usage Arguments Value See Also Examples
Create a Raster* object from x, y and z values. x and y represent spatial coordinates and must be on a regular grid. If the resolution is not supplied, it is assumed to be the minimum distance between x and y coordinates, but a resolution of up to 10 times smaller is evaluated if a regular grid can otherwise not be created. z values can be single or multiple columns (variables) If the exact properties of the RasterLayer are known beforehand, it may be preferable to simply create a new RasterLayer with the raster function instead, compute cell numbers and assign the values with these (see example below).
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xyz |
matrix or data.frame with at least three columns: x and y coordinates, and values (z). There may be several 'z' variables (columns) |
res |
numeric. The x and y cell resolution (optional) |
crs |
CRS object or a character string describing a projection and datum in PROJ.4 format |
digits |
numeric, indicating the requested precision for detecting whether points are on a regular grid (a low number of digits is a low precision) |
RasterLayer or RasterBrick
See rasterize for points that are not on a regular grid
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