i have an a-apriori knowledge about the autocorrelation function r(h) , and the more r is near 1 or -1, there is a significant spatial correlation, and also when the lag distance increase , the r(h) will diminish, but i want more details from expert in spatial analysis.
Kind regards Louadj yacine
There is a difference between the normal statistical autocorreation function and spatial autocorrelation. In spatial autocorrrelation the relationship measured is essentially how many, or how few, points of the same attributes as a point in space are arranged at different lag distances around that point.
It is a rather large subject to explain in a short article, so I would like to refer you to the Geoda website over here: https://geodacenter.asu.edu/software/downloads where you can download a software that is excellent for displaying spatial autocorrelation. Also download the the Geoda Workbook here http://geodacenter.asu.edu/system/files/geodaworkbook.pdf to see how the software works. The section on spatial autocorrelation is on page 124 See an explanatory article here https://en.wikipedia.org/wiki/GeoDA
The theory of spatial autocorrelation is very well explained in the Geospatial Analysis online textbook by de Smith, Goodchid and Longley. It is available here: http://www.spatialanalysisonline.com/HTML/index.html in chapter 5.5.
https://geodacenter.asu.edu/software/downloads
http://www.spatialanalysisonline.com/HTML/index.html
thank you very much for you answer Dr Van der Merwe. i will download the software and the guide , it will help me display the spatial autocorrelation.
DR. Fritz van der Merwe hs provided lot of literature, but he researcher can select a method keeping available facilities in mind.
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