Table 1 Classification standard for accuracy test.

From: Urban expansion in China from a land price equilibrium perspective: regulatory theory and empirical study

Classification standard

C

P

First class (Well)

C < 0.35

P ≥ 0.95

Second class (Qualified)

0.35 ≤ C < 0.45

>0.80

Third class (Barely)

0.45 ≤ C < 0.65

>0.70

Fourth class (Unqualified)

C ≥ 0.65

≤0.70

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