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t.rast.univar(1)	    GRASS GIS User's Manual	      t.rast.univar(1)

NAME
       t.rast.univar   -  Calculates  univariate  statistics from the non-null
       cells for each registered raster	map of a space time raster dataset.

KEYWORDS
       temporal, statistics, raster, time

SYNOPSIS
       t.rast.univar
       t.rast.univar --help
       t.rast.univar  [-eru]  input=name   [output=name]     [where=sql_query]
       [separator=character]   [--overwrite]  [--help]	[--verbose]  [--quiet]
       [--ui]

   Flags:
       -e
	   Calculate extended statistics

       -r
	   Ignore the current region settings and use the raster  map  regions
	   for univar statistical calculation

       -u
	   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=nameA [required]
	   Name	of the input space time	raster dataset

       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.rast.univar calculates	univariate statistics from the non-null	 cells
       for each	registered raster map of a space time raster dataset.

       By  default  it	returns	the name of the	map, the start and end date of
       dataset and the following  values:  mean,  minimum  and	maximum	 vale,
       mean_of_abs,  standard  deviation,  variance, coeff_var,	number of null
       cells, total number of cell.

       Using the e flag	it can calculate also extended statistics: first quar-
       tile, median value, third quartile and percentile 90.

EXAMPLE
       Obtain  the  univariate	statistics  for	 the raster space time dataset
       "tempmean_monthly" (precision reduced to	2 decimals in this example):
       t.rast.univar -e	tempmean_monthly
       id|start|end|mean|min|max|mean_of_abs|stddev|variance|coeff_var|sum|null_cells|cells|first_quartile|median|third_quartile|percentile_90
       2009_01_tempmean@climate_2009_2012|2009-01-01 00:00:00|2009-02-01 00:00:00|3.90|-3.38|7.43|3.95|1.79|3.20|45.91|1977967.31|503233|1010600|2.80|3.92|5.21|6.23
       2009_02_tempmean@climate_2009_2012|2009-02-01 00:00:00|2009-03-01 00:00:00|5.91|-1.82|8.01|5.92|1.63|2.65|27.53|2999555.60|503233|1010600|5.44|6.26|7.07|7.48
       ...
       2012_11_tempmean@climate_2009_2012|2012-11-01 00:00:00|2012-12-01 00:00:00|8.03|1.79|10.91|8.03|1.32|1.73|16.41|4072472.77|503233|1010600|7.49|8.13|8.96|9.48
       2012_12_tempmean@climate_2009_2012|2012-12-01 00:00:00|2013-01-01 00:00:00|8.71|1.76|11.98|8.71|1.72|2.95|19.74|4418403.77|503233|1010600|7.84|8.95|9.99|10.67

SEE ALSO
	t.create, t.info

AUTHOR
       SA<paragraph>ren	Gebbert, ThA1/4nen Institute of	Climate-Smart Agricul-
       ture

SOURCE CODE
       Available at: t.rast.univar source code (history)

       Main index | Temporal index | Topics index | Keywords index | Graphical
       index | Full index

       A(C) 2003-2020 GRASS Development	Team, GRASS GIS	7.8.4 Reference	Manual

GRASS 7.8.4						      t.rast.univar(1)

NAME | KEYWORDS | SYNOPSIS | DESCRIPTION | EXAMPLE | SEE ALSO | AUTHOR | SOURCE CODE

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