Dear all,

I am using the command "extract(raster, polygon)".
> I want to run this command in loop to extract the raster cells values by
polygon number in each iteration.
> I also want to attach one attribute column to shape file and write the
shape file with added attribute.
Please help me how can I do this in R

Quick reply is highly appreciated and Thanks in advance

Rahul Raj
Indian Institute of Remote Sensing, India.

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