Dear Researchers,

i am analyzing statistics of several grids image (i.e. 3 patch: A1, A2, A3)
for my work with 4 resolution scale (0.5,1.0,1.5,2.0). This take a lot of
time. I am asking about reference and web link to learn how I can run in the
same time the same loop for the patch A1, A2 and A3. I open in the same time
three windows of R but It's not elegant.

Thanks in advance
Gianni

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