Table 3 Precision test criterion.

From: Spatial adaptation patterns and coordinated development of water-energy-food complex system in the yellow river basin

Model accuracy grade

P

C

level I (excellent)

> 0.95

< 0.35

level II (up to standard)

> 0.80

< 0.50

level III (barely up to standard)

> 0.70

< 0.65

level IV (below standard)

≤ 0.70

≥ 0.65