To set the holding level for design variables not in the plot
main topic     see also  

1    In the Simplex Design Plot dialog box, click Settings.

2    Do one or more of the following to set the holding values:

·    For components (only available for design with more than three components):

-    To use the preset values for components, choose Lower bound setting or Upper bound setting under Hold components at. When you use a preset value, all components not in the plot will be held at their lower bound or upper bound.

-    To specify the value at which to hold the components, enter a number in Setting for each component that you want to control. This option allows you to set a different holding value for each component.

·    For process variables:

-    To use the preset values for process variables, choose High setting or Low setting under Hold process variables at. When you use a preset value, all variables not in the plot will be held at their high or low settings.

-    To specify the value at which to hold the process variables, enter a number in Setting for each of the process variables you want to control. This option allows you to set a different holding value for each process variable.

·    For an amount variable:

-    In Hold mixture amount at, choose one of the mixture totals. Minitab displays the multiple totals that you entered in the Components subdialog box when you were creating the design.

3    Click OK.