Subroutine called by InitParam. The procedure controls if a covariance model is valid only on the sphere.
CheckSph(numbermodel)
Returns TRUE or FALSE
Numeric; the code number for the covariance model.
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
The function checks if a covariance is valid only on the sphere