The QbD Column: A QbD fractional factorial experiment

The first two posts in this series described the principles and methods of Quality by Design (QbD) in the pharmaceutical industry. The focus now shifts to the role of experimental design in QbD. Quality by Design in the pharmaceutical industry is a systematic approach to development of drug products and […]

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Graph Makeover: Where same-sex couples live in the US

The following map appeared in an article titled "Where Same-Sex Couples Live" in the Upshot section of The New York Times shortly after the US Supreme Court decision ruled that the Constitution grants the right to same-sex marriage throughout the US. The map coloring shows the proportion of same-sex couples […]

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Why it's important to brainstorm factors and levels in a designed experiment

The best time to plan an experiment is after you’ve done it – R.A. Fisher If you’ve read through my previous blog posts, I usually mention issues discovered during an experiment that I would change if I were to do the experiment again, or things to consider in the subsequent […]

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Toy cars and DOE: The results

Last time, I gave a Father’s Day tale of a father and son’s quest in dyeing toy cars. This time, I’ll share our results, but first remind you of the factors we studied: Car: A/B/C/D Dye type: Solid/liquid Dye amount: low/high (2 Tbsp liquid/4 Tbsp liquid per half cup, or […]

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Father's Day fun with toy cars and DOE

With Father’s Day fast approaching, it seemed fitting that I should share a story about a father and son bonding over design of experiments (DOE) and toy cars. Full disclosure: Some (including their wives) think both the father and son in this tale are too old to be playing with […]

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JMP Student Edition 12: Free with leading intro stats textbooks

Introductory Statistics is notorious for being one of the least popular courses required for graduation. Fortunately, modern approaches to teaching statistics are changing the perceptions and popularity of statistics for the better. These approaches are largely driven by data, rather than mathematics, and the modern data-driven interface of JMP is […]

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Did LeBron James step up his game in the playoffs?

The Golden State Warriors beat the Cleveland Cavaliers to win the NBA championship despite the best efforts of LeBron James. With the Cavaliers depleted by injuries (particularly to Kevin Love and Kyrie Irving), James was faced with carrying his team against a very talented and well-rounded Warriors team. And he […]

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AMA Advanced Research Techniques (ART) Forum is next week!

There’s a saying in publishing that you measure a book’s impact in two ways: how many people buy it, and how many people read it. There’s a similar saying in statistics: You measure a technique’s impact by how many people know about it and by how many people actually use […]

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Testing software preferences with a covering array

In any computer software, it’s not unusual to have a set of preferences to allow customization to the settings. JMP is no exception. For example, in JMP 12, the Categorical platform allows for a great deal of the output to be tailored to the user’s preferences. Here’s what we see […]

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Probability and Multiple Choice Profiler in JMP 12 Choice platform

In an earlier post, I introduced the Probability and Multiple Choice Profiler, two new tools in the Choice Platform that help visualize comparisons between competing products and predict market share for proposed new products. This post covers step-by-step instructions for how to open and use the profilers in JMP 12. […]

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