Sets global options for landscapemetrics
Arguments
- to_disk
Logical argument, if FALSE results of get_patches are hold in memory. If true, get_patches writes temporary files and hence, does not hold everything in memory. Can be set with a global option, e.g.
options(to_disk = TRUE)
. See Details.
Details
Landscape metrics rely on the delineation of patches. Hence, get_patches
is
heavily used in landscapemetrics. As raster can be quite big, the fact that
get_patches
creates a copy of the raster for each class in a landscape becomes
a burden for computer memory. Hence, the argument to_disk allows to
store the results of the connected labeling algorithm on disk. Furthermore,
this option can be set globally, so that every function that internally uses
get_patches
can make use of that.