%0 Journal Article %A Behshad, Elham %A Mohammadzadeh, Mohsen %T Evaluation of Tests for Separability and Symmetry of Spatio-temporal Covariance Function %J Journal of Statistical Research of Iran %V 8 %N 1 %U http://jsri.srtc.ac.ir/article-1-82-en.html %R 10.18869/acadpub.jsri.8.1.1 %D 2011 %K Spatio-temporal data, stationarity, symmetry, stationary, separability, %X In recent years, some investigations have been carried out to examine the assumptions like stationarity, symmetry and separability of spatio-temporal covariance function which would considerably simplify fitting a valid covariance model to the data by parametric and nonparametric methods. In this article, assuming a Gaussian random field, we consider the likelihood ratio separability test, a variety of nonparametric and spectral tests of symmetry and also separability of spatio-temporal covariance function. Comparing the tests of symmetry and separability in a level of scenarios, the best ones would be introduced. %> http://jsri.srtc.ac.ir/article-1-82-en.pdf %P 1-27 %& 1 %! %9 Research %L A-10-1-58 %+ %G eng %@ 2538-5771 %[ 2011