disaggregate: Disaggregate
In raster: Geographic Data Analysis and Modeling

Description Usage Arguments Value Author(s) See Also Examples

Disaggregate a RasterLayer to create a new RasterLayer with a higher resolution (smaller cells). The values in the new RasterLayer are the same as in the larger original cells unless you specify method="bilinear", in which case values are locally interpolated (using the resample function).

1 2	## S4 method for signature 'Raster' disaggregate(x, fact=NULL, method='', filename='', ...)

`x`	a Raster object
`fact`	integer. amount of disaggregation expressed as number of cells (horizontally and vertically). This can be a single integer or two integers c(x,y), in which case the first one is the horizontal disaggregation factor and y the vertical disaggreation factor. If a single integer value is supplied, cells are disaggregated with the same factor in x and y direction
`method`	Character. `''` or `'bilinear'`. If `'bilinear'`, values are locally interpolated (using the `resample` function
`filename`	Character. Output filename (optional)
`...`	Additional arguments as for `writeRaster`

Raster object

Robert J. Hijmans and Jim Regetz

aggregate

r <- raster(ncols=10, nrows=10)
rd <- disaggregate(r, fact=c(10, 2))
ncol(rd)
nrow(rd)
values(r) <- 1:ncell(r)
rd <- disaggregate(r, fact=c(4, 2), method='bilinear')