26.2 Design Matrix with Data Already in the Worksheet
If the matrix design and the response are previously entered in the worksheet without using the option Create Factorial Design, Minitab must be able to recognize such design matrix prior the statistical analysis. To achieve this, use the option Define Custom Factorial Design.
Stat > DOE > Factorial > Define Custom Factorial Design
Stat > DOE > Factorial > Define Custom Factorial Design > Low/High
After specifying the wanted design, the worksheet window looks as follows:
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