I made a program which calculates p-value of
spatial correlation between two variables(Xi, Yj),
following some advices which I obtained from ai-geostats,
( Bi-variate Moran's I).
This program uses inverse distance( 1/r )
for weighting ( Wij ).
However, if the above two variables
are always sampled at same points,
Wij will be +infinite for Xi,Yi and
the correlation will not be 'spatial'.
How can I cope with r=0 ?
There seems to be following solution;
(1)categorize distance into finite classes.
(2)Take only Xi, Yj ( i != j ) into calculation
(3)Adopt different weighting strategy
I would appreciate your suggestion of any kind.
Yoshiro Nagao ( Y-Nagao )
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