Table 1 Plackett & Burman 8 matrix containing coded and real values
From: Linalool, citral, eugenol and thymol: control of planktonic and sessile cells of Shigella flexneri
Test | Coded values | Real values (v v−1) | ||||||
|---|---|---|---|---|---|---|---|---|
X1 | X2 | X3 | X4 | Linalool | Citral | Eugenol | Thymol | |
1 | + 1 | − 1 | − 1 | + 1 | 0.0156 | 0 | 0 | 0.0625 |
2 | + 1 | + 1 | − 1 | − 1 | 0.0156 | 0.0625 | 0 | 0 |
3 | + 1 | + 1 | + 1 | − 1 | 0.0156 | 0.0625 | 0.0313 | 0 |
4 | − 1 | + 1 | + 1 | + 1 | 0 | 0.0625 | 0.0313 | 0.0625 |
5 | + 1 | − 1 | + 1 | + 1 | 0.0156 | 0 | 0.0313 | 0.0625 |
6 | − 1 | + 1 | − 1 | + 1 | 0 | 0.0625 | 0 | 0.0625 |
7 | − 1 | − 1 | + 1 | − 1 | 0 | 0 | 0.0313 | 0 |
8 | − 1 | − 1 | − 1 | − 1 | 0 | 0 | 0 | 0 |
9 | 0 | 0 | 0 | 0 | 0.0078 | 0.0313 | 0.01563 | 0.0313 |
10 | 0 | 0 | 0 | 0 | 0.0078 | 0.0313 | 0.01563 | 0.0313 |
11 | 0 | 0 | 0 | 0 | 0.0078 | 0.0313 | 0.01563 | 0.0313 |