Mount Rushmore National Memorial: Accuracy Assessment Final Matrix

Table 9.� Final Contingency Table for Vegetation Accuracy Assessment
								COMMISSION	CONFIDENCE
	REFERENCE CLASS							ERROR	INTERVAL
							TOTAL N	% CORRECT	-	+
		P1	P2	WM	HB	PJ
	P1	19	0	0	0	13	32	59.4	44.8	72
MAP	P2	0	29	4	0	2	35	82.9	70.8	89.5
CLASS	WM	0	1	4	0	0	5	80	41.6	93.4
	HB	0	0	0	3	0	3	100	46.4	100
	PJ	10	1	0	0	16	27	70.4	55.1	81.1
TOTAL N		29	31	8	3	31	102

OMISSION ERROR
% CORRECT		65.5	93.5	50	100	51.6
90% CONFIDENCE INTERVAL
-		50.8	83.4	24	46.4	38.3
+		77	96.7	76	100	64.6

OVERALL TOTAL ACCURACY = 80.8
OVERALL KAPPA INDEX = 57.9%
OVERALL TOTAL ACCURACY 90% LOWER & UPPER CONFIDENCE INTERVALS 62.7%, 75.4%
(OMISSION & COMMISSION ERRORS CALCULATED USING TOTAL ACCURACY, NOT USING KAPPPA INDEX)

Key to Map Class Codes
P1	Ponderosa Pine Complex 1			WM	Wet Meadow (Carex lanuginosa - Calamagrostis stricta HV�
P2	Ponderosa Pine Complex 2			HB	Bur Oak / Ironwood Woodland�
				PJ	Ponderosa Pine / Common Juniper Woodland�