Table 4. The mean absolute errors (Å) and percentage (%) distributions of three secondary structures based on four ranges of residue depth values.

RD values (Å)	α-helix (Å, %)	β-strand (Å, %)	coil (Å, %)
0–2.0	0.56, 31.7	0.73, 9.1	0.52, 59.2
2.0–2.5	0.71, 41.6	0.86, 19.1	0.64, 39.3
2.5–3.0	0.88, 42.4	1.00, 26.4	0.79, 31.2
>3.0	1.85, 42.0	1.84, 37.2	2.14, 20.8