This is the homepage for the R package **SpatialPack** developed in the
Department of Mathematics at Universidad Técnica Federico Santa María, Chile by
Felipe Osorio, Ronny Vallejos and Francisco Cuevas.

It provides tools to assess the association between two spatial processes. Currently, three methodologies are implemented: An adapted t-test to
perform hypothesis testing about the independence between the processes, a suitable nonparametric correlation coefficient, and the codispersion
coefficient.

- Tjostheim's Coefficient.

Tjostheim, D., 1978. A measure of association for spatial variables.
Biometrika 65, 109-114.
- A Modified Correlation Coefficient Test.

Clifford, P., Richardson, S., Hémon, D., 1989. Assessing the significance of the correlation between two spatial processes.
Biometrics 45, 123-134.
- The Codispersion Coefficient.

Matheron, G., 1965. Les Variables Régionalisées et leur Estimation, Masson, Paris.

Rukhin, A., Vallejos, R., 2008. Codispersion coefficient for spatial and temporal series.
Statistics and Probability Letters 78, 1290-1300.