Table 1. Statistical summary of the fivefold cross validated predictions for the seven regression models.

Property	RMSE	MAE	r2
EBG	0.51 eV	0.35 eV	0.90
BVRH	14.25 GPa	8.68 GPa	0.97
GVRH	18.43 GPa	10.62 GPa	0.88
θD	56.97 K	35.86 K	0.95
Cp	0.09 kB per atom	0.05 kB per atom	0.95
CV	0.07 kB per atom	0.04 kB per atom	0.95
αV	1.47 × 10−5 K−1	5.69 × 10−6 K−1	0.91

The summary corresponds with Fig. 3.