Dear all:

Given an array with x,y, coordinates and z values (z being the values per
x,y location; for example, say z ranges from -1 to 1 throughout space), how
could I calculate a spatial weight matrix and calculate Moran's I given
queen's case continuity?

If I am not mistaken, there are ways analyze GIS data in this fashion using
GeoDa (not an R package; Anselin et al. 2006**). However, I am currently not
looking at GIS data, but rather a table of numbers ("z values" created
directly in R) that I have given x,y spatial coordinates (based on row and
column numbering).

I also notice there are R packages that deal with the spatial analysis of
GIS data, but I am having trouble finding out how to analyze an array made
in R, so that I can make a spatial weight matrix that can be used to
calculate Moran's I given queen's case continuity.

Any ideas are appreciated.

Thank you for your time and consideration,
Laura

** Anselin et al. (2006) GeoDa: An introduction to spatial data analysis.
Geographic Analysis, 38, 5-22.


-- 
" Genius is the summed production of the many with the names of the few
attached for easy recall, unfairly so to other scientists"

- E. O. Wilson (The Diversity of Life)

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