Vegetation Classification and Mapping Project Report - USGS
Vegetation Classification and Mapping Project Report - USGS
Vegetation Classification and Mapping Project Report - USGS
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Appendix H: Accuracy Assessment Data<br />
Table H-2. Contingency table: Group map classes.<br />
Field assessment map class<br />
Number of samples<br />
User accuracy/commission<br />
error (% correct)<br />
90% Confi dence intervals<br />
Map<br />
code<br />
<br />
G2 2<br />
G11 1<br />
G10 2<br />
G5 1<br />
G9 1<br />
G6 2<br />
G8<br />
G7 1<br />
G14<br />
G3<br />
Number of 10<br />
samples<br />
<strong>Vegetation</strong> map database map class<br />
G2 G11 G10 G5 G9 G6<br />
27 8 9 2<br />
3 53 27 3<br />
4 17 51 40<br />
1 8 18 12<br />
1 20 1 61 2<br />
8 6 24<br />
1 5 6 1 3<br />
1<br />
1 5 3 9 1<br />
1<br />
37 85 134 23 136 28<br />
G8<br />
1<br />
1<br />
4<br />
4<br />
1<br />
5<br />
59<br />
10<br />
85<br />
G7 G14 G3 - +<br />
2 51 52.9 41.6 64.0<br />
88 60.2 51.5 68.4<br />
4 122 41.8 34.7 49.2<br />
1 4 49 36.7 26.4 48.5<br />
1 88 69.3 60.8 76.7<br />
6 51 47.1 36.0 58.4<br />
1 13 89 66.3 57.7 73.9<br />
9 1 22 40.9 25.6 58.2<br />
40 59 67.8 57.2 76.8<br />
11 72 9<br />
1 9 11 81.8 57.3 93.8<br />
Producer<br />
accuracy/<br />
omission error<br />
(%correct)<br />
90%<br />
confidence<br />
interval (-)<br />
NTF<br />
NTF<br />
73.0 62.4 38.1 78.3 44.9 85.7<br />
59.7 53.5 31.5 61.6 38.0 71.7<br />
69.4<br />
60.7<br />
81.8 55.6 100.0<br />
57.3 45.9 76.9<br />
Total number of samples:<br />
630<br />
Total correct: 351<br />
90%<br />
confidence<br />
interval (+)<br />
NTF<br />
83.1 70.5 45.1 89.0 51.9 93.4<br />
76.9<br />
93.8 64.8 100.0<br />
Overall accuracy = 55.7% Kappa index = 49.9% St<strong>and</strong>ard error = 0.02<br />
Key to group map class codes in Table H-2<br />
G2<br />
G3<br />
G5<br />
G6<br />
G7<br />
G8<br />
G9<br />
G10<br />
G11<br />
G14<br />
Colorado Plateau Mixed Bedrock <strong>and</strong> Tablel<strong>and</strong><br />
Colorado Plateau Pinyon-Juniper Woodl<strong>and</strong><br />
Inter-Mountain Basins Active <strong>and</strong> Stabilized Dune<br />
Inter-Mountain Basins Greasewood Flat<br />
Inter-Mountain Basins Riparian Woodl<strong>and</strong> <strong>and</strong> Shrubl<strong>and</strong><br />
Inter-Mountain Basins Wash<br />
Inter-Mountain Basins Semi-Desert Grassl<strong>and</strong><br />
Inter-Mountain Basins Semi-Desert Shrub-Steppe<br />
Inter-Mountain Basins Shale Badl<strong>and</strong><br />
Southern Colorado Plateau S<strong>and</strong> Shrubl<strong>and</strong><br />
H5
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