Open Access
Table 4
ANOVA results for predictive models.
| Source | DoF | SS | Contr., % | Adj. MS | F-value | P-value |
|---|---|---|---|---|---|---|
| (a) Surface roughness (Ra) model | ||||||
| Model | 20 | 0.979426 | 88.92% | 0.048971 | 10.03 | <0.00001 |
| Linear | 5 | 0.576319 | 52.32% | 0.115264 | 23.60 | <0.00001 |
| DC | 1 | 0.420293 | 38.16% | 0.420293 | 86.06 | <0.00001 |
| GV | 1 | 0.023639 | 2.15% | 0.023639 | 4.84 | 0.037 |
| TON | 1 | 0.01409 | 1.28% | 0.014090 | 2.88 | 0.102 |
| TOFF | 1 | 0.05611 | 5.09% | 0.056110 | 11.49 | 0.002 |
| FP | 1 | 0.062188 | 5.65% | 0.062188 | 12.73 | 0.001 |
| Square | 5 | 0.139988 | 12.71% | 0.027998 | 5.73 | 0.001 |
| DC*DC | 1 | 0.032140 | 4.79% | 0.032140 | 6.58 | 0.017 |
| GV*GV | 1 | 0.014340 | 3.33% | 0.014340 | 2.94 | 0.099 |
| TON*TON | 1 | 0.000899 | 0.11% | 0.000899 | 0.18 | 0.672 |
| TOFF*TOFF | 1 | 0.005421 | 0.02% | 0.005421 | 1.11 | 0.302 |
| FP*FP | 1 | 0.049099 | 4.46% | 0.049099 | 10.05 | 0.004 |
| 2-Way Interaction | 10 | 0.263119 | 23.89% | 0.026312 | 5.39 | <0.00001 |
| DC*GV | 1 | 0.034969 | 3.17% | 0.034969 | 7.16 | 0.013 |
| DC*TON | 1 | 0.011578 | 1.05% | 0.011578 | 2.37 | 0.136 |
| DC*TOFF | 1 | 0.065792 | 5.97% | 0.065792 | 13.47 | 0.001 |
| DC*FP | 1 | 0.068906 | 6.26% | 0.068906 | 14.11 | 0.001 |
| GV*TON | 1 | 0.000324 | 0.03% | 0.000324 | 0.07 | 0.799 |
| GV*TOFF | 1 | 0.001849 | 0.17% | 0.001849 | 0.38 | 0.544 |
| GV*FP | 1 | 0.000020 | 0.00% | 0.000020 | 0.00 | 0.949 |
| TON*TOFF | 1 | 0.030276 | 2.75% | 0.030276 | 6.20 | 0.020 |
| LR-TON*FP | 1 | 0.041616 | 3.78% | 0.041616 | 8.52 | 0.007 |
| TOFF*FP | 1 | 0.007788 | 0.71% | 0.007788 | 1.59 | 0.218 |
| Error | 25 | 0.122096 | 11.08% | 0.004884 | ||
| Lack-of-Fit | 20 | 0.106029 | 9.63% | 0.005301 | 1.65 | 0.304 |
| Pure Error | 5 | 0.016067 | 1.46% | 0.003213 | ||
| Total | 45 | 100.00% | ||||
| Source | DoF | Adj. SS | Contr., % | Adj. MS | F-value | P-value |
| (b) Overcut (OC) model | ||||||
| Model | 20 | 0.090892 | 93.69% | 0.004545 | 18.55 | <0.00001 |
| Linear | 5 | 0.058467 | 60.26% | 0.011693 | 47.73 | <0.00001 |
| DC | 1 | 0.036015 | 37.12% | 0.036015 | 147.02 | <0.00001 |
| GV | 1 | 0.004855 | 5.00% | 0.004855 | 19.82 | <0.00001 |
| TON | 1 | 0.016796 | 17.31% | 0.016796 | 68.57 | <0.00001 |
| TOFF | 1 | 0.000486 | 0.50% | 0.000486 | 1.98 | 0.171 |
| FP | 1 | 0.000315 | 0.32% | 0.000315 | 1.29 | 0.268 |
| Square | 5 | 0.014488 | 14.93% | 0.002898 | 11.83 | <0.00001 |
| DC*DC | 1 | 0.006074 | 9.63% | 0.006074 | 24.80 | <0.00001 |
| GV*GV | 1 | 0.000844 | 2.60% | 0.000844 | 3.44 | 0.075 |
| TON*TON | 1 | 0.000395 | 0.01% | 0.000395 | 1.61 | 0.216 |
| TOFF*TOFF | 1 | 0.002200 | 1.62% | 0.002200 | 8.98 | 0.006 |
| FP*FP | 1 | 0.001033 | 1.06% | 0.001033 | 4.22 | 0.051 |
| 2-Way Interaction | 10 | 0.017938 | 18.49% | 0.001794 | 7.32 | <0.00001 |
| DC*GV | 1 | 0.004949 | 5.10% | 0.004949 | 20.20 | <0.00001 |
| DC*TON | 1 | 0.004775 | 4.92% | 0.004775 | 19.49 | <0.00001 |
| DC*TOFF | 1 | 0.000821 | 0.85% | 0.000821 | 3.35 | 0.079 |
| DC*FP | 1 | 0.000633 | 0.65% | 0.000633 | 2.58 | 0.121 |
| GV*TON | 1 | 0.000001 | 0.00% | 0.000001 | 0.00 | 0.947 |
| GV*TOFF | 1 | 0.000390 | 0.40% | 0.000390 | 1.59 | 0.219 |
| GV*FP | 1 | 0.000289 | 0.30% | 0.000289 | 1.18 | 0.288 |
| TON*TOFF | 1 | 0.004469 | 4.61% | 0.004469 | 18.24 | 0.000 |
| TON*FP | 1 | 0.000480 | 0.49% | 0.000480 | 1.96 | 0.174 |
| TOFF*FP | 1 | 0.001132 | 1.17% | 0.001132 | 4.62 | 0.041 |
| Error | 25 | 0.006124 | 6.31% | 0.000245 | ||
| Lack-of-Fit | 20 | 0.005216 | 5.38% | 0.000261 | 1.44 | 0.367 |
| Pure Error | 5 | 0.000908 | 0.94% | 0.000182 | ||
| Total | 45 | 100.00% | ||||
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