Modify Design - Factors
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Stat > DOE > Modify Design > choose Modify Factors > Specify

Name the factors and assign values for factor settings.

Dialog box items

Continuous Factors

Factor: Shows the number of factors you have chosen for your design. This column does not take any input.

Name: Enter text to change the name of the factors. By default, Minitab names the factors alphabetically.

Low: Enter a numeric value for the low setting of each factor.

High: Enter a numeric value for the high setting of each factor.

Categorical Factors

Factor: Shows the number of factors you have chosen for your design. This column does not take any input.

Name: Enter text to change the name of the factors. By default, Minitab names the factors alphabetically.

Levels: Shows the number of levels for each factor. This column does not take any input.

Level Values: Enter numeric or text values for the levels of each factor.