Table 3. Summary of multiple regression with five explanatory variables for 4D site diversity.
| Variable | Estimate | SE | SS | RSS | F1,1461 | P (>F) | Partial R2 | VIF |
|---|---|---|---|---|---|---|---|---|
| Gene density | −0.0127 | 0.0010 | 122.876 | 1230.8 | 162.028 | <2.2e-16* | 0.0998 | 1.483 |
| r̂ | 0.0062 | 0.0008 | 49.496 | 1157.5 | 65.267 | 1.357e-15* | 0.0428 | 1.011 |
| Dn | −0.0038 | 0.0010 | 11.432 | 1119.4 | 15.075 | 0.0001* | 0.0102 | 1.567 |
| dS | 0.0147 | 0.0010 | 197.848 | 1305.8 | 260.889 | <2.2e-16* | 0.1515 | 1.156 |
| GC content | −0.0036 | 0.0008 | 14.391 | 1122.4 | 18.977 | 1.416e-05* | 0.0128 | 1.076 |
| (Intercept) | 0.1516 | 0.0009 |
Calculated for 100-kb windows (R2 = 0.340; adjusted R2 = 0.339; F5,1461 = 151.1; P < 2.2e-16). r̂, recombination rate; Dn, number of nonsynonymous substitutions; dS, synonymous substitutions per synonymous site; SS, sum of squares; RSS, residual sum of squares; VIF, variance inflation factor; *P ≤ 0.05.