Common second order designs in Response surface methodology

This video discusses the central composite design (CCD) and the Box-Behnken design. Blocking in RSM is briefly discussed.
This video was recorded by Dr. Erik Vanhatalo, Quality technology and logistics, Luleå University of Technology (LTU), Sweden. The primary purpose of this video is to be learning material for undergraduate and graduate students following a course in design and analysis of experiments at LTU. The course book used in these courses are primarily: Montgomery, D.C. (2013). Design and Analysis of Experiments. Wiley.

Пікірлер: 3

  • @punksnotdead4766
    @punksnotdead47664 жыл бұрын

    Great video. I wish there was a video that explained rotatability

  • @erikvanhatalo7

    @erikvanhatalo7

    4 жыл бұрын

    Thanks! Glad you liked it. I never made a video just on rotatability alone. May come in the future. For the CCD you can make the design rotatable throuh the aloha value. Rotatable designs have equal prediction variance at all positions that have equal distance from the design center. Many times reasonable choice.

  • @punksnotdead4766

    @punksnotdead4766

    4 жыл бұрын

    Thanks for your reply Erik. It’s the whole idea of why you’d pick a certain value and why a particular value of alpha gives equal prediction variance that I don’t understand. I don’t even understand what equal prediction variance means in the context of a certain response surface eg parabola, stationary ridge, rising ridge or saddle (col or minimax). Going to hit the books on this subject over Xmas