[R] spatial cross-correlation

[jgarcia at ija.csic.es]

Hi;
I cannot find in the R html documentation a way to evaluate
cross-correlation in 2D data sets.

I would like to evaluate cross-correlation in a series of moving windows
between two maps.

i,e, specify several windows inside the complete 2D spatial matrixes and
for each one ofthese windows evaluate the 2D cross-correlation (commonly
conducted in the spectral domain).

Thanks in advance and best wishes,

Javier GP
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