---
name: "t.rast3d.univar"
section: "1grass"
platform: "linux"
package: "grass-doc"
version: "8.4.1-1"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/t.rast3d.univar"
---

# t.rast3d.univar(1grass)

Calculates univariate statistics from the non-null cells for each registered 3D raster map of a space time 3D raster dataset.

## NAME

**t.rast3d.univar**  - Calculates univariate statistics from the non-null cells for each registered 3D raster map of a space time 3D raster dataset.

## KEYWORDS

temporal, statistics, raster3d, voxel, time, parallel

## SYNOPSIS

**t.rast3d.univar**\
 **t.rast3d.univar --help**\
 **t.rast3d.univar** \[-**es**\] **input**=*name*  \[**zones**=*name*\]   \[**nprocs**=*integer*\]   \[**output**=*name*\]   \[**where**=*sql\_query*\]   \[**separator**=*character*\]   \[--**overwrite**\]  \[--**help**\]  \[--**verbose**\]  \[--**quiet**\]  \[--**ui**\]

### Flags:

- **-e**

  Calculate extended statistics

- **-s**

  Suppress printing of column names

- **--overwrite**

  Allow output files to overwrite existing files

- **--help**

  Print usage summary

- **--verbose**

  Verbose module output

- **--quiet**

  Quiet module output

- **--ui**

  Force launching GUI dialog

### Parameters:

- **input**=*name* **\[required\]**

  Name of the input space time raster3d dataset

- **zones**=*name*

  Raster map with zones to compute statistics for\
   Raster map with zones to compute statistics for (needs to be CELL)

- **nprocs**=*integer*

  Number of threads for parallel computing\
   Default: *1*

- **output**=*name*

  Name for output file

- **where**=*sql\_query*

  WHERE conditions of SQL statement without ’where’ keyword used in the temporal GIS framework\
   Example: start\_time \> ’2001-01-01 12:30:00’

- **separator**=*character*

  Field separator character between the output columns\
   Special characters: pipe, comma, space, tab, newline\
   Default: *pipe*

## DESCRIPTION

*t.rast3d.univar* provides the same functionality as t.rast.univar, the only difference is the 3D raster map layer metadata. Please refer to the manual page of t.rast.univar for documentation and examples.

## SEE ALSO

*t.rast.univar,* *t.create,* *t.info*

## AUTHOR

Sören Gebbert, Thünen Institute of Climate-Smart Agriculture\
 Stefan Blumentrath (support for zones)

## SOURCE CODE

Available at: t.rast3d.univar source code (history)

Accessed: Monday Feb 24 17:51:47 2025

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