Figure 1From: The effect of spatial aggregation on performance when mapping a risk of diseaseLEFT: Ninety points (grey) distributed according to a uniform in the unit disk, and 10 additional `outbreak' points (black) from the square left of center. RIGHT: One level of aggregation for the unit disk, where the exact locations are reassigned to a single point in the corresponding grid square. Each centroid location is represented by a ‘+’.Back to article page