I have two maps that originally come from a harvester and a tractor as shapefiles: Corn Yield and Planting Speed. I would like to know what would be the best procedures to statistically answer the two questions below:
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- Is there a correlation between the Corn Yield and the Speed Planting? In other words, does the tractor speed during the planting affects the final corn yield?
- If yes, what would be the optimal speed to reach the highest corn yields?
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