Factorial vs fractional vs response surface designs | when to use what?

[@punditgi]

This video is very important. Many thanks for creating it! 😊🎉

[@MarcelButschle]

Pleasure! I’m glad that you liked it :)

[@Daniel-ve8oi]

The topic of DoE is such a complex field and you've explained this stuff so nice, I'd wish to hear much more on these topics!

[@MarcelButschle]

I‘m already working on it :) I have some more resources on experimentaldesignhub.com that I did not had the time to film a video yet. But I will.

[@lalababu-k1r]

You are awesome!

[@MarcelButschle]

Thanks 😁

[@aaGiGi]

very clear, many thanks from me who know very little in statistic but have to use it 😊😊

[@MarcelButschle]

Thank you :)

[@123tobiiboii123]

Thank you for this video. Why is it so hard to find clear information about DOE? It seems like there are 1000 random videos on youtube telling 0.1% of the story. Is it something that is often taught in University classrooms but has not really made its way out to those that are self-studying?

[@MarcelButschle]

That is exactly why I started with these videos! I have put some more resources on www.experimentaldesignhub.com I don’t know why there is so few information about it. My guess would be that DoE is quite commercialized. Even courses about DoE. They are usually quite expensive and not affordable if there isn’t a company paying for you.

[@123tobiiboii123]

@@MarcelButschle Yes, it seems like many of the courses look like Sigma Six style, optimise your business for less waste and huge profit! I would like to find a comprehensive book or resource written for someone who knows some statistics and wants an overview of the techniques. I just read Naked Statistics and found the style so approachable. NightHawkInLight put out a pretty good video on using the Taguchi method for the layman. I'm thinking of finding the R. A. Fisher book, I think I will be out of my depth but at least most of the information will be in one place. The website looks great, I appreciate your efforts

[@MarcelButschle]

Do you know the book: Design and Analysis of Experiments by Douglas C. Montgomery? Might be for you.

[@ahmedaladily7360]

How can I set the 5 level parameters, for example pH 2 3 4 5 6 and other 4 factors having 5 levels also using Responce surface ( central composite design) in DESIGN EXPERT 13 software

[@MarcelButschle]

Hey, what you are describing is not really a central composite design but a full factorial design with multiple levels.

[@lalababu-k1r]

Which software you use to make the videos

[@MarcelButschle]

At the time I was using LumaFusion, which is a video editor app for iPad. But now I switch back to classic PowerPoint for the animations and DaVinci Resolve for editing.

[@lalababu-k1r]

@MarcelButschle thank you, much appreciated!

[@brightamenu1617]

Can one use factorial design and after use response surface design

[@MarcelButschle]

Yes, you can do that. Just add the additional runs to the factorial design plan. You also don’t need to repeat the experiments you already completed through the factorial design.