Table 3 Twelve-trial Plackett–Burman design for evaluate the most effective eleven independent variables on responses.
Run no. | Independent variables | Dependent variables | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
A | B | C | D | E | F | G | H | J | K | L | R1 (g/l) | R2 (mg/l) | |||
Actual | Predicted | Actual | Predicted | ||||||||||||
1 | + 1 | + 1 | − 1 | + 1 | + 1 | + 1 | + 1 | − 1 | − 1 | − 1 | + 1 | 7.3 | 7.15 | 106.23 | 110.62 |
2 | + 1 | + 1 | + 1 | − 1 | − 1 | + 1 | − 1 | + 1 | − 1 | + 1 | + 1 | 1.8 | 2.5 | 1.35 | 2.83 |
3 | − 1 | − 1 | − 1 | − 1 | − 1 | − 1 | − 1 | − 1 | − 1 | − 1 | − 1 | 0.4 | 0.8 | 2.64 | 7.32 |
4 | + 1 | − 1 | − 1 | + 1 | + 1 | + 1 | − 1 | + 1 | + 1 | + 1 | − 1 | 0.8 | 1.05 | 0.83 | 1.92 |
5 | + 1 | − 1 | + 1 | + 1 | − 1 | − 1 | − 1 | − 1 | + 1 | − 1 | + 1 | 1.1 | 1.5 | 2.67 | 6.34 |
6 | − 1 | − 1 | − 1 | + 1 | − 1 | − 1 | + 1 | + 1 | − 1 | + 1 | + 1 | 0.2 | 0.55 | 19.73 | 24.87 |
7 | − 1 | + 1 | + 1 | + 1 | + 1 | − 1 | − 1 | − 1 | − 1 | + 1 | − 1 | 0.6 | 1.3 | 2.12 | 3.86 |
8 | − 1 | + 1 | − 1 | − 1 | + 1 | − 1 | − 1 | + 1 | + 1 | − 1 | + 1 | 1.2 | 1.8 | 2.96 | 8.48 |
9 | − 1 | + 1 | + 1 | + 1 | − 1 | + 1 | + 1 | + 1 | + 1 | − 1 | − 1 | 7.4 | 7.75 | 141.54 | 135.27 |
10 | − 1 | − 1 | + 1 | − 1 | + 1 | + 1 | + 1 | − 1 | + 1 | + 1 | + 1 | 2.3 | 2.7 | 71.49 | 77.65 |
11 | + 1 | − 1 | + 1 | − 1 | + 1 | − 1 | + 1 | + 1 | − 1 | − 1 | − 1 | 7.1 | 6.45 | 102.71 | 104.86 |
12 | + 1 | + 1 | − 1 | − 1 | − 1 | − 1 | + 1 | − 1 | + 1 | + 1 | − 1 | 9 | 9.6 | 160.12 | 164.06 |
