Checks the validity and type of the specified distance.
CheckDistance(distance)An integer:
0 for Euclidean distance
1 for Geodesic distance
2 for Chordal distance
If the input is not recognized, the function returns NULL.
A character string indicating the type of distance.
Available options are: "Eucl" (Euclidean), "Geod" (Geodesic), and "Chor" (Chordal).
See also GeoCovmatrix.
Moreno Bevilacqua moreno.bevilacqua89@gmail.com
https://sites.google.com/view/moreno-bevilacqua/home
Víctor Morales Oñate victor.morales@uv.cl
https://sites.google.com/site/moralesonatevictor/
Christian Caamaño-Carrillo chcaaman@ubiobio.cl
https://www.researchgate.net/profile/Christian-Caamano
This function checks whether the specified distance type is valid.