New features
- The following functions were added to compute the height-height correlation function, roughness exponents and anisotropy exponents, and power spectrum decay slope:
-
get_hhcf()_
: based on the auto-covariance function
-
get_alpha()_
: using the auto-correlation length as break point (instead of a bootstrapped segmented regression)
-
get_all_alpha()_
: wrapper around get_alpha_()
-
get_beta()
: still uses a bootstrapped segmented regression but is only performed once per tile
- The following wrapper functions were added:
- The following functions were added for loading and visualizing the results:
Deprecation
The following functions are not used anymore: + get_hhcf()
+ get_alpha()
+ get_all_alpha()
- The following functions were modified
New features
- The following functions were added to compute the height-height correlation function:
- The following functions were added to compute roughness exponents:
- The following functions were added to compute anisotropy exponents:
- Some convenience functions:
Enhancements
- added one vignette describing the derivation of roughness and anisotropy exponents
- added one vignette comparing derivations of roughness and anisotropy exponents in three constrasting landscapes
New features
- The following functions were added to allow a 2D Fourier analysis of topography:
- The following functions were added to rotate raster according to a 2D Fourier analysis:
- Some visualization functions:
Enhancements
- re-organized the Reference and the Articles
- added one vignette describing the basic use of Fourier analysis functions
- added one vignette describing how to rotate rasters along 2DFT main components
Initial release.
- Contains the following functions