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Coding of the actual values for 32 full factorial design.
| Factors (Independent variables) | Levels used |
||
|---|---|---|---|
| Low (−1) (%) | Medium (0) (%) | High (+1) (%) | |
| X1 = percentage of camphor | 2 | 6 | 10 |
| X2 = percentage of cross carmellose sodium | 4 | 8 | 12 |
Dependent variables: Y1 = % porosity; Y2 = % drug release at 60 min.
