This function extracts the values from a given input raster based on a mask.
an object of class "RasterLayer" (package raster). The raster from which data will be extracted
an object of class "RasterLayer" or a two column matrix of coordinates. The reference raster (or coordinates) to be used as mask for extraction.
logical. Should the output be spatially explicit -i.e. a georeferenced raster?
Default is FALSE, returning a vector of extracted values from
When input data given to
rast does not match the resolution and extent of a raster mask argument, the latter is preferred. The function will therefore return a vector of n elements, one for each non NA cell in the mask. Input raster cells falling inside mask cells, but not over their cells centre will be ignored.
a vector, or an object of class "RasterLayer". The values from the input raster (
rast argument) at coordinates provided as matrix, or those overlapping with non NA cells in the mask raster. If
spatial == TRUE an object of class "RasterLayer" is returned.
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<environment: R_GlobalEnv>  13 14 3 NA 9 2 1 11 12 8 3 2 1 1 12 17 8 6 9 2 Loading required package: sp NOTE: rgdal::checkCRSArgs: no proj_defs.dat in PROJ.4 shared files NOTE: rgdal::checkCRSArgs: no proj_defs.dat in PROJ.4 shared files NOTE: rgdal::checkCRSArgs: no proj_defs.dat in PROJ.4 shared files
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