Define Custom Mixture Design - Lower/Upper - Linear Constraints
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Stat > DOE > Mixture > Define Custom Mixture Design > Lower/Upper > Linear constraints

Allows you to set linear constraints for the set of components. See Setting linear constraints for extreme vertices designs for details.

Dialog box items

Specify a coefficient for one or more components, and a value for Lower and/or Upper

Lower: Enter the lower value for the linear constraint.

A, B, C, … : There is one row for each component in the design. Enter a coefficient for one or more of the components

Upper: Enter the upper value for the linear constraint.