Alex
Alex
From Guth and Kane, 2021 - "MICRODEM uses the geodetic formulas from Vincenty (1975). GRASS uses the 1970 geodesic code from the U.S. Naval Oceanographic Office (GRASS, n.d.), and ArcGIS...
As an intermediate step can also use a "Z-factor" https://pro.arcgis.com/en/pro-app/latest/tool-reference/3d-analyst/applying-a-z-factor.htm
Karney equations implemented in [geosphere](https://github.com/rspatial/geosphere) package
Also see Florinsky (2016) section 4.3 on the "Calculation of Local Morphometric Variables on a Spheroidal Equal Angular Grid" and Florinsky (2017). Florinsky, I.V., 2016. Digital terrain analysis in soil...
Albani et al 2004 proposes a different weighting function. "Gauss-like weighting function of the form is proposed: wi=e^-((Di^2*r^2)/(2h^2)) where Di is the Euclidean distance (in grid cells) of element i...
- remove calls to library for packages under Suggests. Instead use :: - For qmetrics.jpg, that is generated by cowplot so will need to make the html code conditional -...
Total Least Squares (TLS) seems like "major axis regression" (Numerical Ecology Ed3, page 542) and Orthogonal Distance Regression (pg 556)