Topic: sampling

d.where		Identifies the geographic coordinates associated with point locations given in display coordinates.
r.random.cells		Generates random cell values with spatial dependence.
r.random		Creates a raster map layer and vector point map containing randomly located points.
t.rast.what		Sample a space time raster dataset at specific vector point coordinates and write the output to stdout using different layouts
t.sample		Samples the input space time dataset(s) with a sample space time dataset and print the result to stdout.
t.vect.observe.strds		Observes specific locations in a space time raster dataset over a period of time using vector points.
t.vect.what.strds		Stores raster map values at spatial and temporal positions of vector points as vector attributes.
v.random		Generates random 2D/3D vector points.
v.sample		Samples a raster map at vector point locations.
v.what.rast		Uploads raster values at positions of vector points to the table.
v.what.rast3		Uploads 3D raster values at positions of vector points to the table.
v.what.vect		Uploads vector values at positions of vector points to the table.

See also the corresponding keyword sampling for additional references.

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