How to set alpha=1(start points within the limits) in central composite design?
Article ID: KB0074331
Updated On:
| Products | Versions |
|---|---|
| Spotfire Statistica | 13.0 and later |
Description
When choosing a alpha >1 in central composite design, there are start points beyond the experimental region defined by the boundary of each factor. But it might be physically difficult or impossible to implement such a design in real situation. As such, a face centered design with alpha =1 could be considered in this case.
Resolution
Select "Face centered start points" in the Design of a Central Composite Experiment dialog
Issue/Introduction
How to set alpha=1(start points within the limits) in central composite design?
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