Table 11.

Agreement between map and reference labels for NLCD 2001 for the continental United States at Level I of the classification hierarchy. See Table 4 for explanation of contents. OA₁ = 75.8 (± 0.6%) and OA₂ = 89.3% (± 0.4%).

Map ↓	Reference
	10	20	30	40	50	70	80	90	Total	User	Auser	n
10	1.5732	0.0315	0.0214	0.0281	0.0079	0.0131	0.0079	0.0997	1.7829	88 (2)	92 (2)	216
20	0.0054	3.9146	0.0276	0.4879	0.1628	0.1816	0.7500	0.0404	5.5703	70 (2)	82 (2)	835
30	0.0431	0.0287	0.5334	0.0179	0.2455	0.2791	0.0078	0.0287	1.1843	45 (4)	62 (2)	234
40	0.0438	0.4077	0.0098	22.7164	1.9762	0.2875	0.3083	0.4191	26.1687	87 (1)	95 (1)	2212
50	0.0480	0.3647	0.0784	1.6001	15.8047	3.7531	0.3428	0.0541	22.0459	72 (2)	90 (1)	1365
70	0.0002	0.3065	0.1075	0.5988	3.4782	8.0118	2.2633	0.0659	14.8322	54 (2)	82 (2)	1228
80	0.0644	0.9355	0.0046	0.9248	0.2622	0.6341	20.0202	0.2721	23.1180	87 (1)	93 (1)	1422
90	0.1100	0.0918	0.0044	1.4163	0.1727	0.1603	0.1259	3.2163	5.2978	61 (3)	77 (2)	488
Total	1.8882	6.0809	0.7874	27.7904	22.1104	13.3206	23.8263	4.1963	100.0000
Prod	83 (3)	64 (2)	68 (7)	82 (1)	72 (1)	60 (2)	84 (1)	77 (2)
Aprod	89 (3)	83 (2)	86 (6)	89 (1)	91 (1)	88 (1)	91 (1)	91 (2)
n	222	1060	127	2507	1203	857	1638	386				8000