coarsenGrid is a function that resamples a SpatialGridDataFrame.
an integer telling how much the grid should be coarsened
integer giving the relative offset of the first point, see details below for a closer description
coarsenGrid is a function that samples from a
coarse indicates that every
coarse row and column will
be sampled, starting with the row and column represented in
offset. offset = c(0,0)
implies that the smallest x- and y-coordinates will be a part of the resampled
data set, offset = c(1,1) implies that sampling will start on the second row and column.
Jon Olav Skoien
Pebesma, E., Cornford, D., Dubois, G., Heuvelink, G.B.M., Hristopulos, D., Pilz, J., Stohlker, U., Morin, G., Skoien, J.O. INTAMAP: The design and implementation f an interoperable automated interpolation Web Service. Computers and Geosciences 37 (3), 2011.
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