[GRASS-user] r.mapcalc and polygons

[ambrish dhaka]

Hi! all,
I wish to perform r.mapcalc algebra for an area bound by certain polygons in a vector file. How to do this?
Are there any correlation and anova expressions for r.mapcalc. I would like them to use for, kindly help me how to put these expressions if there is no such things, for eg, Corr(ma1, map2, bound by polygon a).

thanks!
ambrish

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