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topic_null_data(1grass) Grass User's Manual topic_null_data(1grass)

Topic: null data

r.null Manages NULL-values of given raster map.
r3.null Explicitly create the 3D NULL-value bitmap file.

See also the corresponding keyword null data for additional references.

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© 2003-2019 GRASS Development Team, GRASS GIS 7.6.0 Reference Manual

GRASS 7.6.0