Posts Tagged ‘ Bayesian statistics ’

Constructing an informative prior using meta-analysis

August 31, 2015
By

Chris Guure writes: I am trying to construct an informative prior by synthesizing or collecting some information from literature (meta-analysis) and then to apply that to a real data set (it is longitudinal data) for over 20 years follow-up. In constructing the prior using the meta-analysis data, the issue of publication bias came up. I […] The post Constructing an informative prior using meta-analysis appeared first on Statistical Modeling, Causal…

Read more »

Performing design calculations (type M and type S errors) on a routine basis?

August 29, 2015
By

Somebody writes writes: I am conducting a survival analysis (median follow up ~10 years) of subjects who enrolled on a prospective, non-randomized clinical trial for newly diagnosed multiple myeloma. The data were originally collected for research purposes and specifically to determine PFS and OS of the investigational regimen versus historic controls. The trial has been […] The post Performing design calculations (type M and type S errors) on a routine…

Read more »

“Can you change your Bayesian prior?”

August 25, 2015
By

Deborah Mayo writes: I’m very curious as to how you would answer this for subjective Bayesians, at least. I found this section of my book showed various positions, not in agreement. I responded on her blog: As we discuss in BDA and elsewhere, one can think of one’s statistical model, at any point in time, […] The post “Can you change your Bayesian prior?” appeared first on Statistical Modeling, Causal…

Read more »

Data-analysis assignments for BDA class?

August 20, 2015
By

In my Bayesian data analysis class this fall, I’m planning on doing some lecturing and class discussion, but the core of the course will be weekly data-analysis assignments where they do applied statistics using Stan (to fit models) and R (to pre-process the data and post-process the inferences). So, I need a bunch of examples. […] The post Data-analysis assignments for BDA class? appeared first on Statistical Modeling, Causal Inference,…

Read more »

Macartan Humphreys on the Worm Wars

August 18, 2015
By
Macartan Humphreys on the Worm Wars

My Columbia political science colleague shares “What Has Been Learned from the Deworming Replications: A Nonpartisan View”: Last month there was another battle in a dispute between economists and epidemiologists over the merits of mass deworming.1 In brief, economists claim there is clear evidence that cheap deworming interventions have large effects on welfare via increased […] The post Macartan Humphreys on the Worm Wars appeared first on Statistical Modeling, Causal…

Read more »

My 2 classes this fall

August 17, 2015
By

Stat 6103, Bayesian Data Analysis Modern Bayesian methods offer an amazing toolbox for solving science and engineering problems. We will go through the book Bayesian Data Analysis and do applied statistical modeling using Stan, using R (or Python or Julia if you prefer) to preprocess the data and postprocess the analysis. We will also discuss […] The post My 2 classes this fall appeared first on Statistical Modeling, Causal Inference,…

Read more »

ShinyStan v2.0.0

August 14, 2015
By
ShinyStan v2.0.0

For those of you not familiar with ShinyStan, it is a graphical user interface for exploring Stan models (and more generally MCMC output from any software). For context, here’s the post on this blog first introducing ShinyStan (formerly shinyStan) from earlier this year. ShinyStan v2.0.0 released ShinyStan v2.0.0 is now available on CRAN. This is […] The post ShinyStan v2.0.0 appeared first on Statistical Modeling, Causal Inference, and Social Science.

Read more »

Fitting a multilevel model

August 11, 2015
By

Cui Yang writes: I have a question about the use of BRT (Boosting regression tree). I am planning to write an article about the effects of soil fauna and understory fine roots on forest soil organic carbon. The experiment was conducted in a subtropical forest area in China. There were 16 blocks each with 5 […] The post Fitting a multilevel model appeared first on Statistical Modeling, Causal Inference, and…

Read more »

Monte Carlo and the Holy Grail

August 9, 2015
By
Monte Carlo and the Holy Grail

On 31 Dec 2010, someone wrote in: A British Bayesian curiosity: Adrian Smith has just been knighted, and so becomes Sir Adrian. He can’t be the first Bayesian knight, as Harold Jeffreys was Sir Harold. I replied by pointing to this discussion from 2008, and adding: Perhaps Spiegelhalter can be knighted next. Or maybe Ripley! […] The post Monte Carlo and the Holy Grail appeared first on Statistical Modeling, Causal…

Read more »

Classifying causes of death using “verbal autopsies”

August 8, 2015
By

Tyler McCormick sent along this paper, “Probabilistic Cause-of-death Assignment using Verbal Autopsies,” coauthored with Zehang Li, Clara Calvert, Amelia Crampin, Kathleen Kahn, and Samuel Clark: In areas without complete-coverage civil registration and vital statistics systems there is uncertainty about even the most basic demographic indicators. In such areas the majority of deaths occur outside hospitals […] The post Classifying causes of death using “verbal autopsies” appeared first on Statistical Modeling,…

Read more »


Subscribe

Email:

  Subscribe