Note: A new GRASS GIS stable version has been released: GRASS GIS 7.4, available here.
Updated manual page: here
NAME
r.stats.zonal - Calculates category or object oriented statistics (accumulator-based statistics).
KEYWORDS
raster,
statistics,
zonal statistics
SYNOPSIS
r.stats.zonal
r.stats.zonal --help
r.stats.zonal [-cr] base=name cover=name method=string output=name [--overwrite] [--help] [--verbose] [--quiet] [--ui]
Flags:
- -c
- Cover values extracted from the category labels of the cover map
- -r
- Create reclass map with statistics as category labels
- --overwrite
- Allow output files to overwrite existing files
- --help
- Print usage summary
- --verbose
- Verbose module output
- --quiet
- Quiet module output
- --ui
- Force launching GUI dialog
Parameters:
- base=name [required]
- Name of base raster map
- cover=name [required]
- Name of cover raster map
- method=string [required]
- Method of object-based statistic
- Options: count, sum, min, max, range, average, avedev, variance, stddev, skewness, kurtosis, variance2, stddev2, skewness2, kurtosis2
- count: Count of values in specified objects
- sum: Sum of values in specified objects
- min: Minimum of values in specified objects
- max: Maximum of values in specified objects
- range: Range of values (max - min) in specified objects
- average: Average of values in specified objects
- avedev: Average deviation of values in specified objects
- variance: Variance of values in specified objects
- stddev: Standard deviation of values in specified objects
- skewness: Skewness of values in specified objects
- kurtosis: Kurtosis of values in specified objects
- variance2: (2-pass) Variance of values in specified objects
- stddev2: (2-pass) Standard deviation of values in specified objects
- skewness2: (2-pass) Skewness of values in specified objects
- kurtosis2: (2-pass) Kurtosis of values in specified objects
- output=name [required]
- Resultant raster map
r.stats.zonal is a tool to analyse exploratory statistics of a
floating-point "cover layer" according to how it intersects with objects
in a "base layer". A variety of standard statistical measures are possible
(called "zonal statistics" in some GIS).
NOTES
r.stats.zonal is intended to be a partial replacement for
r.statistics, with support
for floating-point cover maps at the expense of not supporting
quantiles. For this, see
r.stats.quantile.
r.quantile,
r.stats.quantile,
r.statistics
Glynn Clements
Last changed: $Date: 2016-08-07 14:29:36 -0700 (Sun, 07 Aug 2016) $
SOURCE CODE
Available at: r.stats.zonal source code (history)
Note: A new GRASS GIS stable version has been released: GRASS GIS 7.4, available here.
Updated manual page: here
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GRASS Development Team,
GRASS GIS 7.0.7svn Reference Manual