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. Standard order is also called 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 centroids, 1 for vertices, −1 for axial points, 2 for double blends, and 3 for triple blends. 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 Statistical Software 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 centroids, vertices, axial points, double blends, and triple blends.
- Blocks: This column contains a 1 in every row because the design does not have blocks.
| C1 |
C2 |
C3 |
C4 |
| StdOrder |
RunOrder |
PtType |
Blocks |
| 3 |
1 |
1 |
1 |
| 10 |
2 |
0 |
1 |
| 5 |
3 |
1 |
1 |
| 13 |
4 |
2 |
1 |
| 4 |
5 |
−1 |
1 |
| 6 |
6 |
3 |
1 |
| 9 |
7 |
1 |
1 |
| 1 |
8 |
0 |
1 |
| 8 |
9 |
−1 |
1 |
| 7 |
10 |
0 |
1 |
| 11 |
11 |
0 |
1 |
| 2 |
12 |
0 |
1 |
| 12 |
13 |
1 |
1 |