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Vegetation Classification and Mapping Project Report - USGS

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<strong>Vegetation</strong> <strong>Classification</strong> <strong>and</strong> Distribution <strong>Mapping</strong> <strong>Report</strong>: Petrified Forest National Park<br />

Table H-3. Contingency table: Macrogroup map classes.<br />

<strong>Vegetation</strong> map database map class<br />

Map<br />

code<br />

MG2<br />

MG8<br />

MG5<br />

MG6<br />

MG9<br />

MG7<br />

MG12<br />

MG3<br />

Number of<br />

samples<br />

Producer<br />

accuracy/<br />

omission error<br />

(%correct)<br />

90%<br />

confidence<br />

interval (-)<br />

90%<br />

confidence<br />

interval (+)<br />

Field assessment map class<br />

MG2 MG8 MG5 MG6 MG9 MG7 MG12 MG3<br />

2 27 19 1 2<br />

4 5 277 2 6 4<br />

1 21 18 4 1 4<br />

2 14 24 5 6<br />

1 14 1 59 1 13<br />

1 1 10 9 1<br />

1 14 3 1 40<br />

1 1 9<br />

10 35 359 22 28 85 11 71 9<br />

NTF 77.1 77.2 81.8 85.7 69.4 81.8 56.3 100.0<br />

NTF 63.8 73.3 65.1 71.7 60.7 57.3 46.6 76.9<br />

NTF 86.6 80.6 92.6 93.4 76.9 93.8 65.6 100.0<br />

Number of samples<br />

User accuracy/commission<br />

error (% correct)<br />

90% Confi dence intervals<br />

- +<br />

51 52.9 41.6 64.0<br />

88 60.2 51.5 68.4<br />

122 41.8 34.7 49.2<br />

49 36.7 26.4 48.5<br />

88 69.3 60.8 76.7<br />

51 47.1 36.0 58.4<br />

89 66.3 57.7 73.9<br />

22 40.9 25.6 58.2<br />

Total number of samples:<br />

630<br />

Total correct: 463<br />

Overall accuracy = 73.5% Kappa index = 62.9% St<strong>and</strong>ard error = 0.02<br />

Key to macrogroup map class codes in Table H-3<br />

MG2 Colorado Plateau Mixed Bedrock <strong>and</strong> Tablel<strong>and</strong><br />

MG3 Colorado Plateau Pinyon-Juniper Woodl<strong>and</strong><br />

MG5 Inter-Mountain Basins Active <strong>and</strong> Stabilized Dune<br />

MG6 Inter-Mountain Basins Greasewood Flat<br />

MG7 Inter-Mountain Basins Riparian Woodl<strong>and</strong> <strong>and</strong> Shrubl<strong>and</strong><br />

MG8 Inter-Mountain Basins Semi-Desert Grassl<strong>and</strong> <strong>and</strong> Steppe<br />

MG9 Inter-Mountain Basins Wash<br />

MG12 Southern Colorado Plateau S<strong>and</strong> Shrubl<strong>and</strong><br />

H6

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