Posts Tagged ‘ Bayesian statistics ’

BREAKING . . . Kit Harrington’s height

July 22, 2015
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BREAKING . . . Kit Harrington’s height

Rasmus “ticket to” Bååth writes: I heeded your call to construct a Stan model of the height of Kit “Snow” Harrington. The response on Gawker has been poor, unfortunately, but here it is, anyway. Yeah, I think the people at Gawker have bigger things to worry about this week. . . . Here’s Rasmus’s inference […] The post BREAKING . . . Kit Harrington’s height appeared first on Statistical Modeling,…

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Measurement is part of design

July 17, 2015
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The other day, in the context of a discussion of an article from 1972, I remarked that the great statistician William Cochran, when writing on observational studies, wrote almost nothing about causality, nor did he mention selection or meta-analysis. It was interesting that these topics, which are central to any modern discussion of observational studies, […] The post Measurement is part of design appeared first on Statistical Modeling, Causal Inference,…

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Prior exposure workshops 3 and 4 (Bayesian data analysis for social scientists)

July 17, 2015
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Prior exposure workshops 3 and 4 (Bayesian data analysis for social scientists)

Booking is now open for workshops three and four of our Prior Exposure Bayesian data analysis training (all taking place in Nottingham). The dates are 22 and 23 September 2015.These follow on from the first two workshops but if you have some training i...

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New papers on LOO/WAIC and Stan

July 16, 2015
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New papers on LOO/WAIC and Stan

Aki, Jonah, and I have released the much-discussed paper on LOO and WAIC in Stan: Efficient implementation of leave-one-out cross-validation and WAIC for evaluating fitted Bayesian models. We (that is, Aki) now recommend LOO rather than WAIC, especially now that we have an R function to quickly compute LOO using Pareto smoothed importance sampling. In […] The post New papers on LOO/WAIC and Stan appeared first on Statistical Modeling, Causal…

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Our short course

July 16, 2015
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We've opened officially registration for our short course on Bayesian methods in health economics (this is a link to last year's edition, with a little more information than the official webpage for this year's course). When we decided to do this, we a...

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Prior information, not prior belief

July 15, 2015
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The prior distribution p(theta) in a Bayesian analysis is often presented as a researcher’s beliefs about theta. I prefer to think of p(theta) as an expression of information about theta. Consider this sort of question that a classically-trained statistician asked me the other day: If two Bayesians are given the same data, they will come […] The post Prior information, not prior belief appeared first on Statistical Modeling, Causal Inference,…

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The good, the bad and the ugly

July 15, 2015
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The good, the bad and the ugly

This is me kind of whining $-$ although I do have some positive (and I think I'm right in whining).First off: chapeau to the iHEA local organisers at Bocconi University in Milan! I think they've done an incredible job $-$ I think iHEA staff do help and...

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Don’t do the Wilcoxon

July 13, 2015
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Don’t do the Wilcoxon

The Wilcoxon test is a nonparametric rank-based test for comparing two groups. It’s a cool idea because, if data are continuous and there is no possibility of a tie, the reference distribution depends only on the sample size. There are no nuisance parameters, and the distribution can be tabulated. From a Bayesian point of view, […] The post Don’t do the Wilcoxon appeared first on Statistical Modeling, Causal Inference, and…

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Going to iHEA

July 11, 2015
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iHEA's conference is kind of big deal in health economics: it's usually very big, with lots of sessions and lots of people participating. I have been to a few, both sides of the Atlantic and they are usually very good. This year it's in Milan (I think ...

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Back to the future (or the day of the crises)

July 8, 2015
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Back to the future (or the day of the crises)

Yesterday was a very interesting day $-$ not sure if "interesting" is the best word to describe it, but for now I'll just use it...We had our workshop on survival analysis in health economic evaluations, which instigated the first crisis of t...

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