Admittedly, the choice of the initial parameter is not an easy task.
Different models combine the components in a different way. In the
separable model for instance, the spatial and temporal variogram are set
to a joint sill of 1 each where the sill of the entire variogram is a
separate
Dear all
When working with vgmST function, how we choose starting values for space,
time anf joint vgm?
If we should choose them from sample stvariogram, why are they different in
different covariance models? I mean, initial values of space and time vgm in
separable model is different from
