hello thanks for answer, to what is proposed if it is something like, say I
have a layer of grass and readOGR what happened to R, how and with which I
library I can for example, calculate distances between points and the
distance save it as a attribute, or make an average between two columns of
attributes and save the result in a third column (what you propose in your
answer.)

Thanks again for your answer

Ricardo Rodríguez
Univalle

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