Look! It’s your data!

December 10, 2014
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Look! It’s your data!

If a picture is worth a thousand words, then how many tables are a single visualization worth? Exploratory data analysis is a great way to see what is and is not in your dataset. I work in a hospital research… Continue reading →

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The inclination to deny all variation

December 10, 2014
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The inclination to deny all variation

One thing we’ve been discussing a lot lately is the discomfort many people—many researchers—feel about uncertainty. This was particularly notable in the reaction of psychologists Jessica Tracy and Alec Beall to our “garden of forking paths” paper, but really we see it all over: people find some pattern in their data and they don’t even […] The post The inclination to deny all variation appeared first on Statistical Modeling, Causal…

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A Christmas tree from Pascal’s triangle

December 10, 2014
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A Christmas tree from Pascal’s triangle

O Christmas tree, O Christmas tree, One year a fractal made thee! O Christmas tree, O Christmas tree, A heat map can display thee! From Pascal's matrix we define! Reflect across, divide by nine. O Christmas tree, O Christmas tree, Self-similar and so divine! Eventually I will run out of […]

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LDA on Ferguson Grand Jury I

December 10, 2014
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LDA on Ferguson Grand Jury I

The case of Michael Brown, an unarmed black teenager, who was shot and killed on August 9th, by Darren Wilson, a white police officer, in Ferguson has driven public opinion around the globe to the suburb of St. Louis. On Nov. 24, after few weeks under tension, the St. Louis County prosecutor announced that a […]

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Updated: Why R is Hard to Learn

December 10, 2014
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Updated: Why R is Hard to Learn

I’ve updated one of my most widely read blog posts, Why R is Hard to Learn. It focuses on the aspects of R which tend to trip up beginners. The new version is over twice as long as the original … Continue reading →

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Don’t believe everything you read in the (scientific) papers

December 9, 2014
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Don’t believe everything you read in the (scientific) papers

A journalist writes in with a question: This study on [sexy topic] is getting a lot of attention, and I wanted to see if you had a few minutes to look it over for me . . . Basically, I am somewhat skeptical of [sexy subject area] explanations of complex behavior, and in this case […] The post Don’t believe everything you read in the (scientific) papers appeared first on…

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No, a study did not link genetically engineered crops to 22 diseases

December 9, 2014
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No, a study did not link genetically engineered crops to 22 diseases

In my Facebook feed, a friend posted a very scary-looking study that links genetically engineered (GE) crops to the rise in 22 diseases. These are pretty fearsome diseases, too, like bile duct cancer and pelvis cancer. For instance1: There are a few wa...

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Bayesian Cognitive Modeling Models Ported to Stan

December 9, 2014
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Hats off for Martin Šmíra, who has finished porting the models from Michael Lee and Eric-Jan Wagenmakers’ book Bayesian Cognitive Modeling  to Stan. Here they are: Bayesian Cognitive Modeling: Stan Example Models Martin managed to port 54 of the 57 models in the book and verified that the Stan code got the same answers as […] The post Bayesian Cognitive Modeling Models Ported to Stan appeared first on Statistical Modeling,…

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Recordings of RStudio Webinar Series on Essential Tools for Data Science with R

December 9, 2014
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Recordings of RStudio Webinar Series on Essential Tools for Data Science with R

by Yanchang Zhao, RDataMining.com RStudio recently ran a series of live webinars on Essential Tools for Data Science with R, but it is inconvenient for people from other time zones to attend. Fortunately, the recordings have been made available online, … Continue reading →

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Buggy-whip update

December 9, 2014
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Buggy-whip update

On 12 Aug I sent the following message to Michael Link, president of the American Association for Public Opinion Research.  (I could not find Link’s email on the AAPOR webpage but I did some googling and found an email address for him at nielsen.com.): Dear Dr. Link:A colleague pointed me to a statement released under your […] The post Buggy-whip update appeared first on Statistical Modeling, Causal Inference, and Social Science.

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Next Kölner R User Meeting: Friday, 12 December 2014

December 9, 2014
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Next Kölner R User Meeting: Friday, 12 December 2014

The next Cologne R user group meeting is scheduled for this Friday, 12 December 2014.We have an exciting agenda with two talks on Julia and Dynamic Linear Models:Introduction to Julia for R UsersHans Werner BorchersJulia is a high-performance dynamic p...

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Am I a data scientist?

December 9, 2014
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Am I a data scientist?

Last night I gave a very short talk (less than 5 minutes) at the Melbourne Analytics Charity Christmas Gala, a combined event of the Statistical Society of Australia, Data Science Melbourne, Big Data Analytics and Melbourne Users of R Network. This is (roughly) what I said. Statisticians seem to go through regular periods of existential crisis as […]

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LDA on Ferguson Grand Jury I

December 9, 2014
By
LDA on Ferguson Grand Jury I

The case of Michael Brown, an unarmed black teenager, who was shot and killed on August 9th, by Darren Wilson, a white police officer, in Ferguson has driven public opinion around the globe to the suburb of St. Louis. Motivation The case of Michae...

Read more »

LDA on Ferguson Grand Jury I

December 9, 2014
By
LDA on Ferguson Grand Jury I

The case of Michael Brown, an unarmed black teenager, who was shot and killed on August 9th, by Darren Wilson, a white police officer, in Ferguson has driven public opinion around the globe to the suburb of St. Louis. Motivation The case of Micha...

Read more »

LDA on Ferguson Grand Jury I

December 9, 2014
By
LDA on Ferguson Grand Jury I

The case of Michael Brown, an unarmed black teenager, who was shot and killed on August 9th, by Darren Wilson, a white police officer, in Ferguson has driven public opinion around the globe to the suburb of St. Louis. Motivation The case of Michae...

Read more »

LDA on Ferguson Grand Jury I

December 9, 2014
By
LDA on Ferguson Grand Jury I

The case of Michael Brown, an unarmed black teenager, who was shot and killed on August 9th, by Darren Wilson, a white police officer, in Ferguson has driven public opinion around the globe to the suburb of St. Louis. Motivation The case of Michae...

Read more »

LDA on Ferguson Grand Jury I

December 9, 2014
By
LDA on Ferguson Grand Jury I

The case of Michael Brown, an unarmed black teenager, who was shot and killed on August 9th, by Darren Wilson, a white police officer, in Ferguson has driven public opinion around the globe to the suburb of St. Louis. Motivation The case of Michae...

Read more »

LDA on Ferguson Grand Jury I

December 9, 2014
By
LDA on Ferguson Grand Jury I

The case of Michael Brown, an unarmed black teenager, who was shot and killed on August 9th, by Darren Wilson, a white police officer, in Ferguson has driven public opinion around the globe to the suburb of St. Louis. Motivation The case of Michae...

Read more »

amazonish thanks (& repeated warning)

December 8, 2014
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amazonish thanks (& repeated warning)

As in previous years, at about this time, I want to (re)warn unaware ‘Og readers that all links to Amazon.com and more rarely to Amazon.fr found on this blog are actually susceptible to earn me an advertising percentage if a purchase is made by the reader in the 24 hours following the entry on Amazon […]

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Importing Illumina BeadArray data into R

December 8, 2014
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Importing Illumina BeadArray data into R

A colleague needed some help getting Illumina BeadArray gene expression data loaded into R for data analysis with limma. Hopefully whoever ran your arrays can export the data as text files formatted as described in the code below. If so, you can import...

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Steven Pinker on writing: Where I agree and where I disagree

December 8, 2014
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Steven Pinker on writing:  Where I agree and where I disagree

Linguist and public intellectual Steven Pinker recently published an article, “Why Academics Stink at Writing.” That’s a topic that interests me! Like Pinker, I’ve done a lot of writing, both for technical and general audiences. Unlike Pinker, I have not done research on linguistics, but I’ll do my best to comment based on my own […] The post Steven Pinker on writing: Where I agree and where I disagree appeared…

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Marc Bellemare on Social Media

December 8, 2014
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Marc Bellemare on Social Media

Marc Bellemare has been catching my attention recently. On Saturday I had a post that mentioned his talk on "How to Publish Academic Papers". I know that a lot of you have followed this up already.Today, I just have to mention another of his ...

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Genéticamente, no hay tal cosa como la raza puertorriqueña

December 8, 2014
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Genéticamente, no hay tal cosa como la raza puertorriqueña

Editor's note: Last week the Latin American media picked up a blog post with the eye-catching title "The perfect human is Puerto Rican". More attention appears to have been given to the title than the post itself. The coverage and comments on social media have demonstrated the need for scientific education on the topic of

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