Doughnut chart in R with googleVis

September 3, 2013
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Doughnut chart in R with googleVis

The guys at Google continue to update and enhance the Chart Tools API. One new recent feature is a pie chart with a hole, or as some call them: donut charts.Thankfully the new functionality is being achieved through new options for the existing pie cha...

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PaperScape: an Overview of all Scientific Papers Submitted at arXiv

September 2, 2013
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PaperScape: an Overview of all Scientific Papers Submitted at arXiv

The interactive map PaperScape [paperscape.org] by high energy physics researcher Damien George and particle physics PhD student Rob Knegjens provides a visual overview of all the 869,258 scientific physics, mathematics, and computer papers that have ...

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More on Heteros*edasiticity

September 2, 2013
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Thanks to Rikky Vohra for bringing still more to my attention. Absolutely classic!

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Showing results from Cox Proportional Hazard Models in R with simPH

September 2, 2013
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Showing results from Cox Proportional Hazard Models in R with simPH

Update 2 February 2014: A new version of simPH (Version 1.0) will soon be available for download from CRAN. It allows you to plot using points, ribbons, and (new) lines. See the updated package description paper for examples. Note that the ribbons argu...

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Passing-Bablok Regression: R code for SAS users

September 2, 2013
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Passing-Bablok Regression: R code for SAS users

While at the Joint Statistical Meeting a few weeks ago I was talking to a friend about various aspects to clinical trials. He indicated that no current R package was able to perfectly reproduce Passing-Bablok (PB) regression so that it exactly matched SAS. He ultimately wrote a couple of functions and kindly shared them with […]

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“Il y a beaucoup de candidats démocrates, et leurs idéologies ne sont pas très différentes. Et la participation est imprévisible.”

September 2, 2013
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As I wrote a couple years ago: Even though statistical analysis has demonstrated that presidential elections are predictable given economic conditions and previous votes in the states . . . it certainly doesn’t mean that every election can be accurately predicted ahead of time. Presidential general election campaigns have several distinct features that distinguish them […]The post “Il y a beaucoup de candidats démocrates, et leurs idéologies ne sont pas…

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Easy 3-Minute Guide to Making apply() Parallel over Distributed Grids and Clusters in R

September 2, 2013
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Easy 3-Minute Guide to Making apply() Parallel over Distributed Grids and Clusters in R

Last week I attended a workshop on how to run highly parallel distributed jobs on the Open Science Grid (osg). There I met Derek Weitzel who has made an excellent contribution to advancing R as a high performance computing language by developing BoscoR. BoscoR greatly facilitates the use of the already existing package “GridR” by […] The post Easy 3-Minute Guide to Making apply() Parallel over Distributed Grids and Clusters…

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Open Letter to Khan Academy about Basic Probability

September 1, 2013
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Open Letter to Khan Academy about Basic Probability

Khan academy probability videos and exercises aren’t good either Dear Mr Khan You have created an amazing resource that thousands of people all over the world get a lot of help from. Well done. Some of your materials are not … Continue reading →

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Sunday data/statistics link roundup (9/1/13)

September 1, 2013
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There has been a lot of discussion of the importance of open access on Twitter. I am 100% in favor of open access (I do wish it was less expensive), but I also think that sometimes people lose sight of … Continue reading →

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Summary stats for ABC

September 1, 2013
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Summary stats for ABC

Introduction In the previous post I gave a very brief introduction to ABC, including a simple example for inferring the parameters of a Markov process given some time series observations. Towards the end of the post I observed that there were (at least!) two potential problems with scaling up the simple approach described, one relating […]

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Summary stats for ABC

September 1, 2013
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Summary stats for ABC

Introduction In the previous post I gave a very brief introduction to ABC, including a simple example for inferring the parameters of a Markov process given some time series observations. Towards the end of the post I observed that there were (at least!) two potential problems with scaling up the simple approach described, one relating […]

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Post-publication peer review: How it (sometimes) really works

September 1, 2013
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In an ideal world, research articles would be open to criticism and discussion in the same place where they are published, in a sort of non-corrupt version of Yelp. What is happening now is that the occasional paper or research area gets lots of press coverage, and this inspires reactions on science-focused blogs. The trouble […]The post Post-publication peer review: How it (sometimes) really works appeared first on Statistical Modeling,…

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Is Bayesian Inference a Religion?

September 1, 2013
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Is Bayesian Inference a Religion?

Time for a provocative post. There is a nice YouTube video with Tony O’Hagan interviewing Dennis Lindley. Of course, Dennis is a legend and his impact on the field of statistics is huge. At one point, Tony points out that some people liken Bayesian inference to a religion. Dennis claims this is false. Bayesian inference, […]

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Is Bayesian Inference a Religion?

September 1, 2013
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Is Bayesian Inference a Religion?

Time for a provocative post. There is a nice YouTube video with Tony O’Hagan interviewing Dennis Lindley. Of course, Dennis is a legend and his impact on the field of statistics is huge. At one point, Tony points out that some people liken Bayesian inference to a religion. Dennis claims this is false. Bayesian inference, […]

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Mixed models exercise 2. Repeated measurements

September 1, 2013
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Continuing my exploration of mixed models, I now understand what is happening in the second SAS(R)/STAT example for proc mixed (page 5007 of the SAS/STAT 12.3 Manual). It is all about correlation between the time-points within subjects. The data as suc...

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Overheard at the comedy hour at the Bayesian retreat-2 years on

September 1, 2013
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Overheard at the comedy hour at the Bayesian retreat-2 years on

It’s nearly two years since I began this blog, and some are wondering if I’ve covered all the howlers thrust our way? Sadly, no. So since it’s Saturday night here at the Elba Room, let’s listen in on one of the more puzzling fallacies–one that I let my introductory logic students spot… “Did you hear […]

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EU – Consultation on best ways to open up more public data

August 31, 2013
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EU – Consultation on best ways to open up more public data

From: http://www.investineu.com/content/consultation-best-ways-open-more-public-data-12c3Consultation on best ways to open up more public dataThe Commission is asking for help in drawing up guidance and practical advice for boosting the re-use of ...

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GitHub Package Ideas I Stole

August 31, 2013
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GitHub Package Ideas I Stole

One of my favorite sources of good ideas is looking at the GitHub repositories of others and modeling my repos after the good ideas I see others doing. Here's Steve Jobs on stealing ideas: In the past few weeks I've … Continue reading →

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Open data & storytelling – 4 presentations from the Nordic Statistical Meeting 2013

August 31, 2013
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From:http://www.ssb.no/omssb/tjenester-og-verktoy/kurs-og-seminarer/nordisk-statistikermote-vedlegg/artikler-og-presentasjonerOpen Data - Experiences from a National statistical office's point of viewHeli MikkeläStatistics FinlandStatistical storytell...

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Stan Project: Continuous Relaxations for Discrete MRFs

August 30, 2013
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Hamiltonian Monte Carlo (HMC), as used by Stan, is only defined for continuous parameters. We’d love to be able to do discrete sampling. So I was excited when I saw this: Yichuan Zhang, Charles Sutton, Amos J Storkey, and Zoubin Ghahramani. 2012. Continuous Relaxations for Discrete Hamiltonian Monte Carlo. NIPS 25. Abstract: Continuous relaxations play […]The post Stan Project: Continuous Relaxations for Discrete MRFs appeared first on Statistical Modeling, Causal…

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Econometrica, Heteroskedasticity and the Greeks

August 30, 2013
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Over at Leisure of the Theory Class, Ricky Vohra asks why Econometrica is spelled with a "c" rather than a "k." As he notes:The journal Econometrica is spelt as I just wrote. The journal Biometrika, however,...

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AAAS S&T Fellows for Big Data and Analytics

August 30, 2013
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Thanks to Steve Pierson of the ASA for letting us know that the AAAS Science and Technology Fellowship program has a new category for "Big Data and Analytics". For those not familiar, AAAS organizes the S&T Fellowship program to get … Continue reading →

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