Deconstructing Stan Manual Part 2: QR Decomposition

On March 15, we held our second meetup of 2018 covering QR decomposition, simulating correlation matrices using the LKJ distribution, and ending with some general advice about priors.

The slides from the meetup are now available on RPubs. If you have any questions or suggestions, please let us know in the comments.

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Correlation or no correlation, that is the question

A friend asked me about how he should update his beliefs about correlation after seeing some data. In his words:

If I have two variables and I want to express that my prior is that the correlation could be anything between -1 and +1 how would I update this prior based on the observed correlation?

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Deconstructing Stan Manual Part 1: Linear Regression

On February 15, we held our first meetup of 2018 starting a new series called Deconstructing the Stan Manual. During the meetup we coded a Linear Regression model in Stan and fit it to the Wine Quality dataset from the UCI Machine Learning Repository.

The slides from the meetup are now available on RPubs. If you have any questions or suggestions, please let us know in the comments.

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