---
name: "topic_null_data"
section: "1grass"
platform: "linux"
package: "grass-doc"
version: "7.8.5-1+deb11u1"
release: "Debian 11 (Bullseye)"
platforms: ["linux"]
url: "https://new.carta.tech/topic_null_data"
---

# 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.*

Main index \| Topics index \| Keywords index \| Graphical index \| Full index

© 2003-2020 GRASS Development Team, GRASS GIS 7.8.5 Reference Manual