Hi there,
I am trying to build a Response surface Designs for 5 factors. I was thinking to use CCD-Faced but I have a doubt on the design to choose from the options. I introduce the number of factors and when I have to choose the design, there are two option for "Central Composite Design" with different number of Runs:
1) Number of Runs: 28, Block size: -, Center Points: 2.
2) Number of Runs: 44, Block size: -, Center Points: 2.
(see attached image)
Does anyone know the difference between this two options for Central Composite Design?
Thank you in advance
Regards,
