Natural Bridges National Monument: Accuracy Assessment Matrix

Final contingency table for the map classes used at NABR. This table represents the map classes retained following accuracy assessment and revision. Shaded boxes indicate the number of AA points that agree with the assigned map class.
Map Data AA Field Call			C-CABV	S-GOAK	W-PJLM	C-SLIC	W-DOFI	W-PJWS	W-PJSP	W-PJSH	W_PJRL	W-PJNG	W-PJBB	H-NEED	H-GALL			90% Conf. Interval
Map Class�	Map Code¹		2	4	9	9r	12	15	16	17	17r	18	19	21	22	TOTAL	Prod's Accuracy	+	-
C-CABV	2		27	1										1		30	90%	101%	79%
S-GOAK	4		1	12												13	92%	108%	76%
W-PJLM	9		1		42		3									46	91%	99%	83%
C-SSV	9r					37										37	100%	101%	99%
W-DOFI	12		1				16				1					18	89%	104%	74%
W-PJWS	15							14	1							15	93%	107%	79%
W-PJSP	16				2			6	33	2		1	1	1		46	72%	84%	60%
W-PJSH	17		1		3				1	31	1					37	84%	95%	72%
W_PJRL	17r				2						17					19	89%	104%	75%
W-PJNG	18											14			1	15	93%	107%	79%
W-PJBB	19				1				1	3			3			8	38%	72%	4%
H-NEED	21													2		2	100%	125%	75%
H-GALL	22														2	2	100%	125%	75%
TOTAL			31	13	51	37	19	20	36	36	19	15	4	3	3	288
User's Accuracy			87%	92%	82%	100%	84%	70%	92%	86%	89%	93%	75%	67%	67%	Overall Accuracy = 86.8%
90% Conf.		+	99%	108%	92%	101%	101%	89%	101%	97%	104%	107%	123%	128%	128%	Kappa Index = 85%
Interval		-	76%	76%	73%	99%	68%	51%	83%	75%	75%	79%	27%	5%	5%

1. Map classes 1, 3, 14, 20, 220, 226 and 320 were not accuracy assessed.

				Key To Map Class Codes
				(via order on matrix)�
				C-CABV	Canyon Bottom Vegetation							W-PJSP	Pinyon-Juniper / Sparse Understory Woodland
				S-GOAK	Gambel Oak Tall Shrubland							W-PJSH	Pinyon-Juniper / Mixed Shrubs Woodland�
				W-PJLM	Pinyon-Juniper / Littleleaf Mountain Mahogany Woodland							W_PJRL	Pinyon-Juniper / Mixed Shrubs Woodland Rock Ledge Complex
				C-SSV	Slickrock Sparse Vegetation							W-PJNG	Pinyon-Juniper / Native Grass Woodland
				W-DOFI	Douglas-fir Woodland							W-PJBB	Pinyon-Juniper / Buffaloberry-Serviceberry Woodland
				W-PJWS	Pinyon-Juniper / Sagebrush Woodland							H-NEED	Needle-and-Thread-Ricegrass Bunchgrass Grassland
												H-GALL	Galleta � Blue Grama Grassland