topic_null_data.1grass man page

Topic: null data

Note: see also the corresponding keyword null data for additional references.

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

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© 2003-2016 GRASS Development Team, GRASS GIS 7.0.4 Reference Manual

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GRASS 7.0.4 Grass User's Manual