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My polygons (p) was read from a shapefile (shp). I know that I can extract the polygon means by: means <- extract (r, p, fun="mean")

My question is how I can match each mean with the attributes in the shapefile (names of each polygon).

Thanks for your feedback.

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I figured that out. Thanks –  didimichael Apr 11 '12 at 16:09
    
Would you care to write a reply to your question, didimichael, or should we just close it as of no further interest? –  whuber Apr 11 '12 at 16:12
    
You can close it, as the answer to it is very simple. –  didimichael Apr 11 '12 at 16:37
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closed as not a real question by whuber Apr 11 '12 at 16:39

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