Specify further information for Define Custom Response Surface Design

Stat > DOE > Response Surface > Define Custom Response Surface Design > Designs

You can specify the design columns that are already in the worksheet. If you do not have columns that contain the design information, then Minitab creates new columns.

Standard Order Column

If you do not specify a column, then Minitab creates a column that is the row order of the data. The standard order is also called the Yates' order.

Order of the data: Select this option if no standard order column is in the worksheet or if the standard order is the order in the worksheet.
Specify by column: Select this option if the worksheet contains a column that identifies the standard order of the experimental runs.

Run Order Column

If you do not specify a column, then Minitab creates a column that is the row order of the data.

Order of the data: Select this option if no run order column is in the worksheet or if the experimental runs are in the order that they should be done.
Specify by column: Select this option if a column in the worksheet identifies the order that the experimental runs should be done.

Point Type Column

To identify the type of point, Minitab uses a column that contains 0 in rows that are center points, 1 for cube points (corner points), −1 for axial points, and 2 for edge midpoints. If you do not specify a column, then Minitab creates a column with 1 in every row. You can directly edit this new column after you define the design.

Unknown: Select this option if no column with the correct format is in the worksheet.
Specify by column: Select this option if a column with the correct format is in the worksheet.

Blocks

If you specify a column with multiple values, Minitab can include a term for blocks in the model. If you do not specify a column, then Minitab creates a column with 1 in every row. You can directly edit this new column to identify blocks after you define the design

No blocks: Select this option if no block column is in the worksheet or if the design has no blocks.
Specify by column: Select this option if a column in the worksheet identifies which runs are in each block.

In this worksheet, these columns provide more information about the design:

StdOrder: This column contains the standard order of the runs.
RunOrder: This column contains the order that the experimental runs should be done. The order of the factor settings is randomized so the run order differs from the standard order.
PtType: This column identifies center points, cube points, and axial points.
Blocks: This column contains a 1 in every row because the design does not have blocks.

C1	C2	C3	C4	C5	C6
StdOrder	RunOrder	PtType	Blocks	Time	Temperature
3	1	1	1	45.0000	200.000
10	2	0	1	37.5000	175.000
5	3	1	1	30.0000	200.000
13	4	−1	1	37.5000	139.645
4	5	−1	1	26.8934	175.000
6	6	−1	1	37.5000	210.355
9	7	1	1	30.0000	150.000
1	8	0	1	37.5000	175.000
8	9	−1	1	48.1066	175.000
7	10	0	1	37.5000	175.000
11	11	0	1	37.5000	175.000
2	12	0	1	37.5000	175.000
12	13	1	1	45.0000	150.000