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r.resamp.stats

Langue: en

Autres versions - même langue

Version: 370467 (fedora - 01/12/10)

Section: 1 (Commandes utilisateur)

NAME

r.resamp.stats - Resamples raster map layers using aggregation.

KEYWORDS

raster, resample

SYNOPSIS

r.resamp.stats
r.resamp.stats help
r.resamp.stats [-nw] input=name output=name [method=string] [--overwrite] [--verbose] [--quiet]

Flags:

-n

Propagate NULLs
-w

Weight according to area (slower)
--overwrite

Allow output files to overwrite existing files
--verbose

Verbose module output
--quiet

Quiet module output

Parameters:

input=name

Name of input raster map
output=name

Name for output raster map
method=string

Aggregation method
Options: average,median,mode,minimum,maximum,quart1,quart3,perc90,sum,variance,stddev
Default: average

DESCRIPTION

r.resamp.stats fills a grid cell (raster) matrix with aggregated values generated from a set of input layer data points.

Without the -w switch, the aggregate is computed over all of the input cells whose centers lie within the output cell.

With the -w switch, the aggregate uses the values from all input cells which intersect the output cell, weighted according to the proportion of the source cell which lies inside the output cell. This is slower, but produces a more accurate result.

NOTES

SEE ALSO

g.region, r.resample, r.resamp.rst r.resamp.interp

AUTHOR

Glynn Clements

Last changed: $Date: 2006-10-18 19:59:55 +0200 (Wed, 18 Oct 2006) $

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