sa: Calculates the Average Roughness of a Surface
In geodiv: Methods for Calculating Gradient Surface Metrics
sa R Documentation
Calculates the Average Roughness of a Surface
Description
Finds the average roughness of a surface (Sa) as the absolute
deviation of surface heights from the mean surface height.
Height is measured as the value of a raster and may not
necessarily represent actual height.
Usage
sa(x)
Arguments
x
A raster or matrix.
Value
A value of average roughness in the units of the
original raster or matrix.
Examples
# import raster image
data(normforest)
normforest <- terra::unwrap(normforest)
# find the surface roughness
roughness <- sa(normforest)
geodiv documentation built on Oct. 6, 2023, 1:07 a.m.
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| sa | R Documentation |
Calculates the Average Roughness of a Surface
Description
Finds the average roughness of a surface (Sa) as the absolute deviation of surface heights from the mean surface height. Height is measured as the value of a raster and may not necessarily represent actual height.
Usage
sa(x)
Arguments
x |
A raster or matrix. |
Value
A value of average roughness in the units of the original raster or matrix.
Examples
# import raster image
data(normforest)
normforest <- terra::unwrap(normforest)
# find the surface roughness
roughness <- sa(normforest)
R Package Documentation
Browse R Packages
We want your feedback!
Note that we can't provide technical support on individual packages. You should contact the package authors for that.
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