Dot distribution maps provide a way to demonstrate information simply. Each dot represents a set scale; in this case 1 dot=1,000 acres of wheat harvested. This is a dot density point pattern map using nonproportional dots. Quadrat or Nearest Neighbor Analysis can be used to evaluate point patterns for random, uniform or clustered patterns.http://www.nass.usda.gov/research/atlas02/Crops/Field%20Crops%20Harvested/Wheat/All%20Wheat%20for%20Grain,%20Harvested%20Acres-dot.gif
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