r.quantile(1grass) | GRASS GIS User's Manual | r.quantile(1grass) |
r.quantile - Compute quantiles using two passes.
raster, algebra, statistics, percentile, quantile
r.quantile
r.quantile --help
r.quantile [-r] input=name
[quantiles=integer]
[percentiles=float[,float,...]]
[bins=integer] [file=name] [--overwrite]
[--help] [--verbose] [--quiet] [--ui]
r.quantile computes quantiles in a manner suitable for use with large amounts of data. It is using two passes.
Calculation of elevation quantiles (printed to standard-out):
g.region raster=elevation -p r.quantile input=elevation percentiles=0.1,1,10,25,50,75,90,99,99.9
The output of r.quantile can be used for quantile
classification:
g.region raster=elevation -p r.quantile elevation quantiles=5 -r --quiet | r.recode elevation \
out=elev_quant5 rules=-
r.mode, r.quant, r.recode, r.series, r.stats, r.stats.quantile, r.stats.zonal, r.statistics, r.univar, v.rast.stats
Glynn Clements
Available at: r.quantile source code (history)
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© 2003-2020 GRASS Development Team, GRASS GIS 7.8.5 Reference Manual
GRASS 7.8.5 |