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Figure 8 | International Journal of Health Geographics

Figure 8

From: The effects of local street network characteristics on the positional accuracy of automated geocoding for geographic health studies

Figure 8

Scatterplots of positional errors (in meters) for the automated geocodes of Carroll County addresses, by axial orientation of the street on which the corresponding address lies, with 95% normality-based tolerance regions for the inner 95% of the distributions. Upper left panel: rural address on N-S streets. Upper right panel: rural addresses on E-W streets. Lower left panel: municipal addresses on N-S streets. Lower right panel: municipal addresses on E-W streets. In all panels, the outer boundary of the normality-based and nonparametric elliptical tolerance regions are represented by solid and dashed curves, respectively.

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