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Tim

I have been doing data science for 25+ years. Most of my experience is in business-focused data science (e.g., segmentation, econometric pricing models, churn prediction) and survey research (statistical testing, choice modeling, etc).

I am the founder of Displayr, a data science app, and Q, a survey research program.

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37 Is correlation equivalent to association? Feb 5 '13
12 Neural Networks Vs Structural Equation Modeling What's the Difference? May 24 '16
7 Best Practices with Data Wrangling before running Random Forest Predictions Sep 17 '15
7 How to analyze Max Diff via R or SPSS Feb 4 '13
7 What are “coefficients of linear discriminants” in LDA? Feb 20 '18
6 Methods of initializing K-means clustering Dec 7 '17
6 Why is a Normal Mixture Model not identifiable and why does it matter? Mar 7 '17
6 Chi-squared Test and Data Representation Feb 21 '17
6 Scoring items which are not easily compared Feb 28 '13
5 Can I do a PCA on repeated measures for data reduction? Nov 14 '12
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