Kernel Density Estimation in Python | Pythonic Perambulations
Last week Michael Lerner posted a nice explanation of the relationship between histograms and kernel density estimation (KDE). I've made some attempts in this direction before (both in the scikit-learn documentation and in our upcoming textbook), but Michael's use of interactive javascript widgets makes the relationship extremely intuitive. I had been planning to write a similar post on the theory
Frequentism and Bayesianism IV: How to be a Bayesian in Python | Pythonic Perambulations
I've been spending a lot of time recently writing about frequentism and Bayesianism. In Frequentism and Bayesianism I: a Practical Introduction I gave an introduction to the main philosophical differences between frequentism and Bayesianism, and showed that for many common problems the two methods give basically the same point estimates. In Frequentism and Bayesianism II: When Results Differ I wen
Sparse SVDs in Python | Pythonic Perambulations
After Fabian's post on the topic, I have recently returned to thinking about the subject of sparse singular value decompositions (SVDs) in Python. For those who haven't used it, the SVD is an extremely powerful technique. It is the core routine of many applications, from filtering to dimensionality reduction to graph analysis to supervised classification and much, much more. I first came across th
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