Dear all,

with usage of spdep package I tried to explore the impact of changing
location of occurrence of  1’s in binary fashion on Moran index  by shifting
an artificial 9pixel- square (small square  left below in the picture) in
all direction (based on 1 pixel move) in my squared area (500x500 pixels).
www.scandinavia.sk/data/morans.jpg
 I was looking at the distances where the values of Moran´s I index decrease
below particular threshold (in this case 0.6,0.5,0.4) and record this
distances as some indexes in centroids of corresponding square.
I expected that this values in my  area would by symmetrical in all
directions.  But there are not.
Have somebody some ideas why?
Thanks in advance.

Robert
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Robert Pazur
PhD student
Institute of Geography
Slovak Academy Of Sciences

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