Table 1 Levels of independent variables in the tablet design
From: Poly-herbal tablet formulation by design expert tool and in vitro anti-lipase activity
Codes | Code levels | Actual values (mg) | ||
|---|---|---|---|---|
X1 | X2 | X1 | X2 | |
F1 | + 1 | + 1 | 40 | 40 |
F2 | 0 | − 1 | 30 | 20 |
F3 | − 1 | 0 | 20 | 30 |
F4 | + 1 | − 1 | 40 | 20 |
F5 | 0 | 0 | 30 | 30 |
F6 | − 1 | + 1 | 20 | 40 |
F7 | + 1 | 0 | 40 | 30 |
F8 | 0 | + 1 | 30 | 40 |
F9 | − 1 | − 1 | 20 | 20 |