Central Composite

For Central Composite DOE, there are three more columns. They display the high star level, low star level and central level (see Central Composite for more details).

Figure 82: Central Composite

You edit these values in the same way as for the Full factorial DOE.

In the design matrix, the correspondence between levels and codes is as follows:

• -2 means low star level

• -1 means low level

• 0 means central level

• 1 means high level

• 2 means high star level

An example of such a design matrix design matrix with two inputs is given in the following figures.