giovanna jona lasinio
2004-Dec-02 10:53 UTC
[R] Computation of space-time empirical crosscovariances
Dear all, Is there any "simple" way to estimate an empirical crosscovariance function for space-time data? More precisely if I have n space locations in T times on which I observe one variable, I cannot find an already made R function that can compute the empirical crosscovariance. Any suggestion? Thanks Giovanna Jona Lasinio
Edzer J. Pebesma
2004-Dec-03 10:49 UTC
[R] Re: Computation of space-time empirical crosscovariances
Giovanna, space-time cross covariance has never seemed to me something that can be done "simple", but package gstat at least offers you: 1. to include time as a third dimension, and model 3D anisotropy, 2. to calculate cross variograms between different moments in time, and proceed with cokriging. -- Edzer