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r.quantile

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r.quantile: Compute quantiles using two passes.

NAME
r.quantile - Compute quantiles using two passes.

KEYWORDS

raster, statistics

SYNOPSIS

r.quantile r.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.quant
AUTHOR
Glynn Clements Last changed: $Date: 2007-04-06 21:49:26 +0200 (Fri, 06 Apr 2007) $ Full index (C) 2003-2010 GRASS Development Team R.QUANTILE(1)
 
 
 

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