Design-Expert® Software Version 10
Make breakthrough improvements to a product or a process with Design-Expert software. You can not only screen for vital factors, but also locate ideal process settings for top performance and discover optimal product formulations. Now handle hard-to-change factors with split plots! Click here for a video of the highlights.
Mixture and Combined Designs for Optimal Formulations (MIXC)
If you work with mixtures you won't want to miss the 3-day Mixture and Combined Designs for Optimal Formulations workshop this February 22-24 in Minneapolis, MN. Learn how to use mixture designs to develop statistical models of product performance. Then use regression analysis and optimization to identify the "sweet spot" where all specifications can be met.Sign Up
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By Pat Whitcomb
Has a low R2 ever disappointed you during the analysis of your experimental results? Is this really the kiss of death? Is all lost? Let’s examine R2 as it relates to factorial design of experiments (DOE) and find out.
R2 measures are calculated on the basis of the change in the response (Δy) relative to the total variation of the response (Δy + σ) Continue reading