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r.quantile.1grass
Langue: en
Version: 332652 (ubuntu - 24/10/10)
Section: 1 (Commandes utilisateur)
NAME
r.quantile - Compute quantiles using two passes.KEYWORDS
raster, statisticsSYNOPSIS
r.quantiler.quantile help
r.quantile [-r] input=name [quantiles=integer] [percentiles=float[,float,...]] [bins=integer] [--verbose] [--quiet]
Flags:
- -r
Generate recode rules based on quantile-defined intervals.- --verbose
Verbose module output- --quiet
Quiet module output
Parameters:
- input=name
Name of input raster map- quantiles=integer
Number of quantiles
Default: 4- percentiles=float[,float,...]
List of percentiles- bins=integer
Number of bins to use
Default: 1000000
DESCRIPTION
r.quantile computes quantiles in a manner suitable for use with large amounts of data. It is using two passes.EXAMPLE
Calculation of elevation quantiles:g.region rast=elevation.dem -p
r.quantile input=elevation.dem percentiles=0.1,1,10,25,50,75,90,99,99.9
SEE ALSO
r.quantAUTHOR
Glynn ClementsLast changed: $Date: 2007-04-06 21:49:26 +0200 (Fri, 06 Apr 2007) $
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