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Design Folio

Box-Behnken Designs: Data Tab

After you build a Box Behnken design, the Data tab will include a test plan with Response columns for entering response data. An example plan with the default columns shown is displayed next.

Each cell in the last column is used to record the response value obtained at the combination of factor settings (green columns) specified in the current row.

All of the available columns for Box-Behnken designs are described in more detail below. To hide/show columns, use the Visible Columns window.

Tip: If you need to use a non-randomized order in an actual experiment, you can sort the design by clicking a cell in the column you wish to sort by and choosing Sheet > Sheet Actions > Sort > [Order]. For example, if changing levels in a randomized experiment would be too expensive, you can sort the design table by factor levels.

Factor levels can be displayed as the actual values assigned in the factor properties or as coded values. When you use coded values for Box-Behnken designs, the low setting will be represented as "-1" and the high setting will be represented as "1." The center point value will be represented as "0." To switch between coded and actual values, choose Data > Display > [Value Type].

Each response column contains a check box in the column header that specifies whether the response will be included in the analysis. If a column is selected, the color of the check box border will indicate the status of that response's analysis. A green border indicates that the response has been analyzed using the current analysis settings; a red border indicates that it has not. Note that if you clear the check box, you will not be able to specify analysis settings for the response, nor will you be able to display it in plots or use it in optimization.

 

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