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Defining Factors

ADX can generate optimal designs for factors having two to nine levels. You specify the number of levels for a factor when you define it. Follow these steps:

1. Select File Create New Design Optimal from the ADX desktop.
2. Click Define Variables.
3. Click Add and select Add quantitative factorial variable Number of levels 3.
   
   

   
   
   

4. Repeat step 3 to add another three-level variable.
5. Click Add and select Add quantitative factorial variable Number of levels 2.
6. Repeat step 5 four times to add the two-level factors X3, X4, X5, and X6.
   
   

   
   
   

7. Click OK and then Yes to save the changes.

Optimal designs can be created with qualitative and quantitative factors having between two and nine levels.