Table 3.

R² (mean ± sd) of predictions in CMLM.

Number of nodes	2	3	4	5	6
R 2 (mean ± sd)	0.7321 ± 0.0599	0.8357 ± 0.0081	0.7897 ± 0.0276	0.9255 ± 0.0063	0.6594 ± 0.1223
Number of nodes	7	8	9	10	11
R 2 (mean ± sd)	0.7623 ± 0.0132	0.6229 ± 0.0818	0.6648 ± 0.0049	0.7149 ± 0.0563	0.7281 ± 0.0218
Number of nodes	12	13	14	15	16
R 2 (mean ± sd)	0.7579 ± 0.0357	0.7932 ± 0.0026	0.5954 ± 0.0214	0.4769 ± 0.1373	0.8362 ± 0.0035
Number of nodes	17	18	19	20
R 2 (mean ± sd)	0.7074 ± 0.0104	0.6305 ± 0.0201	0.5928 ± 0.0450	0.7207 ± 0.0422