Blog Archives

StanCon is next week, Jan 10-12, 2018

January 4, 2018
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It looks pretty cool! Wednesday, Jan 10 Invited Talk: Predictive information criteria in hierarchical Bayesian models for clustered data. Sophia Rabe-Hesketh and Daniel Furr (U California, Berkely) 10:40-11:30am Does the New York City Police Department rely on quotas? Jonathan Auerbach (Columbia U) 11:30-11:50am Bayesian estimation of mechanical elastic constants. Ben Bales, Brent Goodlet, Tresa Pollock, The post StanCon is...

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Short course on Bayesian data analysis and Stan 23-25 Aug in NYC!

July 19, 2017
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Jonah “ShinyStan” Gabry, Mike “Riemannian NUTS” Betancourt, and I will be giving a three-day short course next month in New York, following the model of our successful courses in 2015 and 2016. Before class everyone should install R, RStudio and RStan on their computers. (If you already have these, please update to the latest version The post Short course...

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Short course on Bayesian data analysis and Stan 18-20 July in NYC!

June 28, 2016
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Short course on Bayesian data analysis and Stan 18-20 July in NYC!

Jonah Gabry, Vince Dorie, and I are giving a 3-day short course in two weeks. Before class everyone should install R, RStudio and RStan on their computers. (If you already have these, please update to the latest version of R and the latest version of Stan, which is 2.10.) If problems occur please join the The post Short course...

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rstanarm and more!

January 14, 2016
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rstanarm and more!

Ben Goodrich writes: The rstanarm R package, which has been mentioned several times on stan-users, is now available in binary form on CRAN mirrors (unless you are using an old version of R and / or an old version of OSX). It is an R package that comes with a few precompiled Stan models — The post rstanarm and...

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R sucks

December 23, 2015
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I’m doing an analysis and one of the objects I’m working on is a multidimensional array called “attitude.” I took a quick look: __ dim(attitude) 30 7 Huh? It’s not supposed to be 30 x 7. Whassup? I search through my scripts for a “attitude” but all I find is the three-dimensional array. Where The post R sucks...

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Short course on Bayesian data analysis and Stan 19-21 July in NYC!

July 7, 2015
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Short course on Bayesian data analysis and Stan 19-21 July in NYC!

Bob Carpenter, Daniel Lee, and I are giving a 3-day short course in two weeks. Before class everyone should install R, RStudio and RStan on their computers. If problems occur please join the stan-users group and post any questions. It’s important that all participants get Stan running and bring their laptops to the course. Class The post Short course...

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R Recipe: Reordering Columns in a Flexible Way

May 16, 2015
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Suppose you have a data frame with a number of columns. You want to put the Trader and System columns first but you also want to do this in a flexible way. One approach would be to specify column numbers. This does the job but it's not very flexible. After all, the number of columns The post R Recipe:...

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Recent Common Ancestors: Simple Model

May 15, 2015
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Recent Common Ancestors: Simple Model

An interesting paper (Modelling the recent common ancestry of all living humans, Nature, 431, 562–566, 2004) by Rohde, Olson and Chang concludes with the words: Further work is needed to determine the effect of this common ancestry on patterns of genetic variation in structured populations. But to the extent that ancestry is considered in genealogical The post Recent Common...

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Comrades Marathon Finish Predictions

April 23, 2015
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Comrades Marathon Finish Predictions

* If you see a bunch of errors, you might want to try opening the page in a different browser. I have had some trouble with MathJax and Windows Explorer. There are various approaches to predicting Comrades Marathon finishing times. Lindsey Parry, for example, suggests that you use two and a half The post Comrades Marathon...

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A Sankey Plot with Uniform Coloured Edges

April 7, 2015
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A Sankey Plot with Uniform Coloured Edges

Following up on my previous post about generating Sankey plots with the riverplot package. It's also possible to generate plots which have constant coloured edges. Here's how (using some of the data structures from the previous post too): The post A Sankey Plot with Uniform Coloured Edges appeared first on Exegetic Analytics.

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