Publications by Joel Cadwell
"Models, Models Everywhere!" Brought to You by R
Statistical software packages sell solutions. If you go to the home page for SAS, they will tell you upfront that they sell products and solutions. They link both together under the first tab just below “The Power to Know” mantra. SPSS separates product and solution into separate tabs, but places both next to each other on its ho...
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Statistical Models of Judgment and Choice: Deciding What Matters Guided by Attention and Intention
Preference begins with attention, a form of intention-guided perception. You enter the store thirsty on a hot summer day, and all you can see is the beverage cooler at the far end of the aisle with your focus drawn toward the cold beverages that you immediately recognize and desire. Focal attention is such a common experience that we ...
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Statistical Models of Judgment and Choice: Deciding What Matters Guided by Attention and Intention
Preference begins with attention, a form of intention-guided perception. You enter the store thirsty on a hot summer day, and all you can see is the beverage cooler at the far end of the aisle with your focus drawn toward the cold beverages that you immediately recognize and desire. Focal attention is such a common experience that we ...
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But I Don’t Want to Be a Statistician!
“For a long time I have thought I was a statistician…. But as I have watched mathematical statistics evolve, I have had cause to wonder and to doubt…. All in all, I have come to feel that my central interest is in data analysis….”Opening paragraph from John Tukey “The Future of Data Analysis” (1962)To begin, we must ackn...
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But I Don’t Want to Be a Statistician!
“For a long time I have thought I was a statistician…. But as I have watched mathematical statistics evolve, I have had cause to wonder and to doubt…. All in all, I have come to feel that my central interest is in data analysis….”Opening paragraph from John Tukey “The Future of Data Analysis” (1962)To begin, we must ackn...
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Sensemaking in R: A Plenitude of Models Makes for Good Storytelling
“Sensemaking is a motivated, continuous effort to understand connections (which can be among people, places, and events) in order to anticipate their trajectories and act effectively.”– Gary Klein, Brian Moon & Robert HoffmanMaking Sense of Sensemaking 1 (2006)Story #1: A Tale of Causal LinksA causal model can serve as a sensemaking tool. I...
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Sensemaking in R: A Plenitude of Models Makes for Good Storytelling
“Sensemaking is a motivated, continuous effort to understand connections (which can be among people, places, and events) in order to anticipate their trajectories and act effectively.”– Gary Klein, Brian Moon & Robert HoffmanMaking Sense of Sensemaking 1 (2006)Story #1: A Tale of Causal LinksA causal model can serve as a sensemaking tool. I...
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Matrix Factorization Comes in Many Flavors: Components, Clusters, Building Blocks and Ideals
Unsupervised learning is covered in Chapter 14 of The Elements of Statistical Learning. Here we learn about several data reduction techniques including principal component analysis (PCA), K-means clustering, nonnegative matrix factorization (NMF) and archetypal analysis (AA). Although on the surface they seem so different, each is a data approx...
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Matrix Factorization Comes in Many Flavors: Components, Clusters, Building Blocks and Ideals
Unsupervised learning is covered in Chapter 14 of The Elements of Statistical Learning. Here we learn about several data reduction techniques including principal component analysis (PCA), K-means clustering, nonnegative matrix factorization (NMF) and archetypal analysis (AA). Although on the surface they seem so different, each is a data approx...
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Undirected Graphs When the Causality Is Mutual
Structural equation models impose causal order on a set of observations. We start with a measurement model: a list of theoretical constructs and a table assigning what is observed (manifest) to what is hidden (latent). Although it is possible to think of this assignment as formative rather than reflective, the default is a causal conn...
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