Stat > DOE > Modify Design > Replicate design > Specify

This topic applies to screening designs, factorial designs, response surface designs, and mixture designs.

Replicate the design to estimate effects more precisely. Each replicate duplicates all the runs that are in the worksheet, including the center points. For more information, go to Replicates and repeats in designed experiments. For more information on replicates with blocks, go to What is a block?.
Note

Because the order from the worksheet is the same for each replicate, modify the design a second time to randomize it after you add the replicates. For more information, go to Randomize design.

The following tables show a base design and the base design with an additional replicate.

Base design

C1 C2 C3 C4 C5 C6
StdOrder RunOrder CenterPt Blocks Temperature Pressure
5 1 0 1 35 100
1 2 1 1 25 50
4 3 1 1 45 150
2 4 1 1 45 50
3 5 1 1 25 150

Base design with 1 replicate added

C1 C2 C3 C4 C5 C6
StdOrder RunOrder CenterPt Blocks Temperature Pressure
5 1 0 1 35 100
1 2 1 1 25 50
4 3 1 1 45 150
2 4 1 1 45 50
3 5 1 1 25 150
10 6 0 2 35 100
6 7 1 2 25 50
9 8 1 2 45 150
7 9 1 2 45 50
8 10 1 2 25 150
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