RRIMax {SurfRough} | R Documentation |
RRIMax: Maximum Radial Roughness index
Description
Same as RRI but instead of computing the mean of the absolute differences of order 2, the maximum is computed. The input is the DEM (no need to detrend).
Usage
RRIMax(x, ...)
## S3 method for class 'numeric'
RRIMax(x, ...)
## S3 method for class 'SpatRaster'
RRIMax(x, ..., .method = c("rcpp", "r"))
Arguments
x |
A DEM as a SpatRaster or a vector of numeric values from a focal window in a DEM from which to compute the index |
... |
reserved for future use |
.method |
Either |
Value
isotropic roughness (in the same units of input)
References
Trevisani S., Teza G., Guth P.L., 2023. Hacking the topographic ruggedness index. Geomorphology https://doi.org/10.1016/j.geomorph.2023.108838
Examples
library(terra)
dem= rast(paste(system.file("extdata", package = "SurfRough"), "/trento1.tif",sep=""))
roughRRIMax=RRIMax(dem)
plot(roughRRIMax)
[Package SurfRough version 0.0.1.1 Index]