Historical Designs

Historical designs allow the experimenter to paste data in from a previous experiment or survey.

Enter the number of rows (at the bottom of the screen) to create a blank spreadsheet. Paste the existing data set into the blank spreadsheet column for column.

Mixture Components: How many components are involved in this experiment?


Fillers may be components too unless their proportion of the mixture is held constant.


Components that will remain a constant proportion of the total can be added to the design by setting the low and high limits to the same value.

Total: The sum of all the components must equal the total for all runs.

Units: (optional) All components must use the same units of measurement.


Common units of measure include direct amounts (mass or volume), weight %, % volume by weight, and molecular equivalents.

Name: Provide names for the components to help with later documentation

Low: The lowest value a component can take (often zero).

High: The highest value a component can take (no larger than the Total)

Edit Constraints button: Click this button to impose additional constraints on component combinations allowed. For more details use the help button on the Edit Constraints dialog.