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t.vect.what.strds(1)	    GRASS GIS User's Manual	  t.vect.what.strds(1)

NAME
       t.vect.what.strds   -  Stores raster map	values at spatial and temporal
       positions of vector points as vector attributes.

KEYWORDS
       temporal, sampling, vector, time

SYNOPSIS
       t.vect.what.strds
       t.vect.what.strds --help
       t.vect.what.strds input=name strds=name	[column=string]	 method=string
       [where=sql_query]     [t_where=sql_query]    [sampling=name[,name,...]]
       [--help]	 [--verbose]  [--quiet]	 [--ui]

   Flags:
       --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	vector dataset

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

       column=string
	   Name	of the vector column to	be created and to store	sampled	raster
	   values
	   The	use  of	 a  column name	forces t.vect.what.rast	to sample only
	   values from the first map  found  in	 an  interval.	Otherwise  the
	   raster map names are	used as	column names

       method=stringA [required]
	   Aggregate operation to be performed on the raster maps
	   Options:   disabled,	  average,   count,   median,  mode,  minimum,
	   min_raster, maximum,	max_raster, stddev, range, sum,	variance,  di-
	   versity, slope, offset, detcoeff, quart1, quart3, perc90, quantile,
	   skewness, kurtosis
	   Default: disabled

       where=sql_query
	   WHERE conditions of SQL statement without 'where' keyword
	   Example: income < 1000 and population >= 10000

       t_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'

       sampling=name[,name,...]
	   The method to be used for sampling the input	dataset
	   Options: start, during, overlap, contain, equal, follows, precedes
	   Default: start

DESCRIPTION
       The  module  t.vect.what.strds  samples	a  space  time	raster dataset
       (STRDS) at the spatio-temporal locations	of a space time	vector dataset
       (STVDS).

EXAMPLE
       The  example  is	 based	on  the	space time vector dataset "precip_sta-
       tions@climate_2009_2012"	created	in the	t.vect.observe.strds  example.
       In  the	example	below, the module fills	the new	column "new_temp" with
       values extracted	from the "tempmean_monthly" space time raster dataset:
       t.vect.what.strds input=precip_stations@climate_2009_2012 \
			 strds=tempmean_monthly@climate_2009_2012 \
			 column=new_temp method=average

SEE ALSO
	  r.univar,   v.univar,	  v.what.rast,	 v.what.rast3,	 v.what.strds,
       v.what.vect, t.create, t.info

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

SOURCE CODE
       Available at: t.vect.what.strds source code (history)

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

       A(C) 2003-2020 GRASS Development	Team, GRASS GIS	7.8.3 Reference	Manual

GRASS 7.8.3						  t.vect.what.strds(1)

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

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