From: Accuracy of commercial geocoding: assessment and implications
Vendor | Match Rate | Concordance | ρ c | ||||
---|---|---|---|---|---|---|---|
Overall a | Street | Centroid b | Block Group | Tract | County | ||
A | 98% | 79% | 20% | 77% | 85% | 99% | 1809 (8790) |
B | 82% | 78% | 4% | 83% | 88% | 99% | 748 (4611) |
C | 81% | 77% | 4% | 81% | 87% | 99% | 704 (4418) |
D | 30% | 30% | 0% | 97% | 98% | 100% | 228 (884) |