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Table 2 Statistical metrics of UCS-Vp, UCS-R and UCS-R-Vp, exponential models and non linear model, respectively

From: Non-destructive methods applied for in situ mechanical diagnosis: Florentine historical buildings in Pietra Serena

Model	R²	RMSECV (% RMSECV)	MAPECV (%)
UCS = 4.5004 * e^0.000905Vp	0.72	16.32 (28)	35
UCS = 2.11 * e^0.0944*R	0.73	13.81 (23)	37
UCS = 1.105^R + 1.001^Vp − 2.51	0.86	9.95 (17)	24

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