Abstract
A new class of simultaneous auto-models that clothe naturally the weak dependence of spatial processes, is presented. The parameters of the so-called auto-linear process are best linear prediction coefficients. With a finite transformation on the original process, the new process has auto-correlations equal to the parameters of interest. New method of moments estimators are proposed and they are consistent and asymptotically normal. Their variance matrix may be written down explicitly in terms of the auto-linear parameters and the result is distribution free. A simulation study and a data example are presented to support the use of the auto-linear model for spatial processes providing convenience for the statistical inference.
Similar content being viewed by others
References
Besag, J., 1974. Spatial interaction and the statistical analysis of lattice systems (with discussion). J. R. Statist. Soc. B, 36, 192–236.
Besag, J., 1975. Statistical analysis of non-lattice data. Statistician, 24, 179–195.
Besag, J., 1977. Efficiency of pseudolikelihood estimation for simple gaussian fields. Biometrika, 64, 616–618.
Besag, J., Kooperberg, C., 1995. On conditional and intrinsic autoregressions. Biometrika, 82, 733–46.
Besag, J., Moran, P.A.P., 1975. On the estimation and testing of spatial interaction in gaussian lattice processes. Biometrika, 62, 555–562.
Brockwell, P.J., Davis, R.A., 1991. Time Series: Theory and Methods, 2nd edition. Springer-Verlag, New-York.
Cressie, N.A.C., 1993. Statistics for Spatial Data. Wiley, New-York.
Dimitriou-Fakalou, C., 2009. Modelling data observed irregularly over space and regularly in time. Stat. Meth. 6, 120–132.
Guyon, X., 1982. Parameter estimation for a stationary process on a d-dimensional lattice. Biometrika, 69, 95–105.
Martin, R.J., 1979. A subclass of lattice processes applied to a problem in planar sampling. Biometrika, 66, 209–217.
Moran, P.A.P., 1973. A Gaussian Markovian process on a square lattice. J. Appl. Prob., 10, 54–62.
Sampson, P.D., Guttorp, P., 1992. Nonparametric estimation of nonstationary spatial covariance structure. J. Am. Statist. Ass., 87, 108–119.
Stein, M.L., Chi, Z., Welty, L.J., 2004. Approximating likelihoods for large spatial data sets. J. R. Statist. Soc., 66, 275–96.
Whittle, P., 1954. On stationary processes in the plane. Biometrika, 41, 434–449.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Dimitriou-Fakalou, C. Statistical Inference for Spatial Auto-Linear Processes. J Stat Theory Pract 4, 345–365 (2010). https://doi.org/10.1080/15598608.2010.10411991
Received:
Revised:
Published:
Issue Date:
DOI: https://doi.org/10.1080/15598608.2010.10411991