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Vol. 25, No. 2 - March/April 2025

IN THIS ISSUE: importing existing data, 2025 Online DOE Summit, and more

FAQ

Original question from a Senior R&D Chemist:


“I’ve started watching the recordings of your workshop on Mixture Design for Optimal Formulations, which I’m attending asynchronously.


“In our case, we are preparing material formulations and conducting tests to determine their properties (mechanical properties such as stress at break, elastic modulus, and elongation at break).


“We already have a year of experience, tests, and results that could be used as responses in the software. Would it be more appropriate to use these results to develop a model that fits the existing data, or is there another recommended approach? Additionally, what format is used to download our results?”


Answer:
I suggest that before designing your first mixture experiment, you enter existing results via our Import tool. Do so via copy/paste from a spreadsheet—Excel or the like. For a brief demo (less than 5 minutes), see this YouTube ‘mini-tutorial’. Learn how to make the most from your imported results by watching my presentation on Evaluating and Exploiting Existing Data (gold or garbage?).


(Learn more about modeling results from mixture experiments by enrolling in the Mixture Design for Optimal Formulations public workshop. If the scheduled time doesn’t work for you, ask about how to take it asynchronously like this questioner!)


EVENTS

2025 Online DOE Summit logo

To allow worldwide participation from speakers and attendees, Stat-Ease expanded its originally planned onsite-only European DOE User Meeting into the 2025 Online DOE Summit. Talks from an impressive lineup of speakers will be broadcast throughout the week of June 16 through 20 in the early afternoon Central European Time. Save these dates and stay tuned for more details and registration information.


I will present the keynote address for the International Conference on Industry, Engineering, and Management Systems (IEMS) on Monday, April 8 on Multifactor Design of Experiments (DOE) for Rapid Process Improvement at the at the Sheraton Sand Key Resort, Clearwater Beach, Florida. This will be a hybrid gathering—both in-person and online. For more information, see the IEMS conference site.


Click here to view the complete list of Stat-Ease events.


Do you need a speaker on DOE for a learning session within your company or professional society at regional, national, or international levels? If so, please get back to me.

ONLINE LEARNING

Sharpen up your DOE skills with a mix of free and paid training: whatever fits your business needs.


Comprehensive DOE courses Online instructor-led learning

*Only $149 for students, faculty, or researchers at an accredited academic institution. Contact us to qualify.


See this web page for the complete schedule of upcoming Stat-Ease courses. To enroll in the workshop that suits you best, click Register on that webpage, or click here to contact us.


If you lead a group of six or more colleagues, save money and customize content via a private workshop. For a quote, please contact us.


Free webinars Sign up to take advantage


Click here to view the times, descriptions and registration links for all upcoming live webinars. Sign up now to advance your DOE know-how!


On-Demand Videos

By the way, our Statistics Made Easy By Stat-Ease YouTube channel provides a free library of highly educational recorded webinars covering a wide variety of DOE tools. It offers videos at all levels—from those new to DOE on up. Take advantage!

INFO


For my advice on design and analysis of experiments, I earned co-authorship of the International Journal of Pharmaceutics publication (Volume 674, 15 April 2025, 125421) of “Material-sparing degradation-kinetics model for thermolabile drug stability assessment during twin-screw melt granulation – insights with gabapentin;” along with this Share Link providing free access through April 27, 2025—no sign up, registration or fees required.


The April 2025 issue of The Journal of Plastic Film and Sheeting provides tips by me on How to handle hard-to-change factors via a split-plot design of experiment.


See our new monthly publication roundup, featuring application of Stat-Ease software for exceptionally successful experiments.


BLOGS


StatsMadeEasy

My wry look at all things statistical and/or scientific with an engineering perspective.


Stat-Ease Blog

Great tips from the Stat-Ease team for making DOE easy, for example, this new “Ask an Expert” post by Jay Davies—highly recommended.

Feel free to get back to me via [email protected] with further questions or comments: I would really appreciate hearing from you!

All the best,

Mark J. Anderson, PE, CQE, MBA
Engineering Consultant, Stat-Ease, Inc.
www.linkedin.com/in/markstat/

QUOTE OF THE DAY

“Avoiding the charm of a 'significant' result can shift focus to consideration of the effect size, which often conveys more informative scientific insight.”

David Spiegelhalter, The Art of Statistics


Stat-Ease, Design-Expert and Statistics Made Easy are registered trademarks of Stat-Ease, Inc.


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