“Versatile, affordable chicken has grown in popularity”

July 4, 2013
By
“Versatile, affordable chicken has grown in popularity”

From two years ago: Awhile ago I was cleaning out the closet and found some old unread magazines. Good stuff. As we’ve discussed before, lots of things are better read a few years late. Today I was reading the 18 Nov 2004 issue of the London Review of Books, which contained (among other things) the [...]The post “Versatile, affordable chicken has grown in popularity” appeared first on Statistical Modeling, Causal…

Read more »

My take on the USA versus Western Europe comparison of GM corn

July 4, 2013
By
My take on the USA versus Western Europe comparison of GM corn

A few days ago I came across Jack Heinemann and collaborators’ article (Sustainability and innovation in staple crop production in the US Midwest, Open Access) comparing the agricultural sectors of USA and Western Europe‡. While the article is titled around the word sustainability, the main comparison stems from the use of Genetically Modified crops in […]

Read more »

Bayes pays!

July 4, 2013
By
Bayes pays!

Jason Rosenfeld, who has the amazing title of “Manager of Basketball Analytics” at the Charlotte Bobcats, announces the following jobs: Basketball Operations: Statistics Basketball Operations Systems Developer – Charlotte Bobcats (Charlotte, NC) POSITION OVERVIEW The Basketball Operations System Developer will collect and import data to our database, check data, and field requests from the Basketball Operations [...]The post Bayes pays! appeared first on Statistical Modeling, Causal Inference, and Social Science.

Read more »

Update: Extending Commodity time series

July 4, 2013
By
Update: Extending Commodity time series

I showed an example of Extending Commodity time series back in 2012. Since then, the web site that I used to get the Thomson Reuters/Jefferies CRB Index data is no longer working. But there are a few alternatives: Thomson Reuters / Jefferies CRB Index. To get data, first select “TRJ/CRB Index-Total Return”, next click “See […]

Read more »

Phil/Stat/Law: 50 Shades of gray between error and fraud

July 3, 2013
By
Phil/Stat/Law: 50 Shades of gray between error and fraud

An update on the Diederik Stapel case: July 2, 2013, The Scientist, “Dutch Fraudster Scientist Avoids Jail”. Two years after being exposed by colleagues for making up data in at least 30 published journal articles, former Tilburg University professor Diederik Stapel will avoid a trial for fraud. Once one of the Netherlands’ leading social psychologists, […]

Read more »

Facts and fallacies of the AIC

July 3, 2013
By
Facts and fallacies of the AIC

Akaike’s Information Criterion (AIC) is a very useful model selection tool, but it is not as well understood as it should be. I frequently read papers, or hear talks, which demonstrate misunderstandings or misuse of this important tool. The following points should clarify some aspects of the AIC, and hopefully reduce its misuse. The AIC is a penalized likelihood, and so it requires the likelihood to be maximized before it…

Read more »

Plan B

July 3, 2013
By
Plan B

Thank goodness, I think that even if this statistician business turns out badly, I can still make a living with rafting (if only by begging for money, in exchange for looking ridiculous in the swim suit)... As part as my brother's stag do, we went...

Read more »

Repost: The 5 Most Critical Statistical Concepts

July 3, 2013
By

(Editor's Note: This is an old post but a good one from Jeff.) It seems like everywhere we look, data is being generated - from politics, to biology, to publishing, to social networks. There are also diverse new computational tools, … Continue reading →

Read more »

Using Checkin Times to Infer Effective Opening Hours

July 3, 2013
By
Using Checkin Times to Infer Effective Opening Hours

It's an idea that everyone has had, and I'm sure I'm not reporting something new. Foursquare has a feature that allows you to see their best guess at opening hours based on when people checkin to a business.

Read more »

Disappointing title

July 3, 2013
By

I caught a glimpse of a book in a library this morning and thought the title was “Statistics for People Who Think.” Sounds like a great book! But the title was actually “Statistics for People Who (Think They) Hate Statistics” wh...

Read more »

Kuhn, 1/f noise, and the fractal nature of scientific revolutions

July 3, 2013
By

Bill Harris writes: I was re-reading your and Shalizi’s “Philosophy and the practice of Bayesian statistics” [see also the rejoinder] and noticed a statement near the end of section 6 about paradigm shifts coming in different magnitudes over different time spans. That reminded me of the almost-mystical ideas surrounding 1/f (f being frequency”) noise in [...]The post Kuhn, 1/f noise, and the fractal nature of scientific revolutions appeared first on…

Read more »

Antihubrisines

July 3, 2013
By

From John Tukey’s Sunset Salvo: Our suffering sinuses are now frequently relieved by antihistamines. Our suffering philosophy — whether implicit or explicit — of data analysis, or of statistics, or of science and technology needs to be far more frequently relieved by antihubrisines. To the Greeks hubris meant the kind of pride that would be […]

Read more »

Duplicate values in a stream of random numbers

July 3, 2013
By
Duplicate values in a stream of random numbers

As I wrote in my previous post, a SAS customer noticed that he was getting some duplicate values when he used the RAND function to generate a large number of random uniform values on the interval [0,1]. He wanted to know if this result indicates a bug in the RAND [...]

Read more »

Summer Reading

July 3, 2013
By
Summer Reading

Get your fresh copy of the R-Journal from here.

Read more »

The Mechanics of Data Visualization2

July 3, 2013
By
The Mechanics of Data Visualization2

I recently presented about the mechanics of data visualization at the CLaRI Literacy Conference to a group of researchers, teachers and school administrators. The presentation is based on the work of Few (2012); Few (2009). While the presentation itself is … Continue reading →

Read more »

The Mechanics of Data Visualization

July 2, 2013
By
The Mechanics of Data Visualization

I recently presented about the mechanics of data visualization at the CLaRI Literacy Conference to a group of researchers, teachers and school administrators. The presentation is based on the work of Few (2012; 2009). While the presentation itself is not about … Continue reading →

Read more »

Le Monde puzzle [#827]

July 2, 2013
By
Le Monde puzzle [#827]

Back to R (!) for the current Le Monde puzzle: Given an unknown permutation of the set {1,…,6}, written on the faces of a cube, there exist a sequence of summits such that increasing by one unit the three numbers of the faces sharing the successive summits in the sequence leads to identical values over […]

Read more »

Phototrails: the Visual Structure of Millions of User-Generated Photos

July 2, 2013
By
Phototrails: the Visual Structure of Millions of User-Generated Photos

The Digital Humanities project Phototrails [phototrails.net], a collaboration by the Department of History of Art and Architecture (University of Pittsburgh), the Software Studies Initiative (California Institute for Telecommunication and Information)...

Read more »

They want me to send them free material and pay for the privilege

July 2, 2013
By

Since we’re on the topic of publishers asking me for money . . . The other day I received the following email: Mimi Liljeholm has sent you a message. Please click ‘Reply’ to send a direct response. Dear Prof Gelman, In collaboration with Frontiers in Psychology, we are organizing a Research Topic titled “Causal discovery [...]The post They want me to send them free material and pay for the privilege…

Read more »

Customize your .Rprofile and Keep Your Workspace Clean

July 2, 2013
By
Customize your .Rprofile and Keep Your Workspace Clean

Like your .bashrc, .vimrc, or many other dotfiles you may have in your home directory, your .Rprofile is sourced every time you start an R session. On Mac and Linux, this file is usually located in ~/.Rprofile. On Windows it's buried somewhere in the R...

Read more »

Fundraiser glass half empty or half full

July 2, 2013
By
Fundraiser glass half empty or half full

Reader Max sent this photo of a poster in the Shake Shack in Brooklyn, NY: Are they way below their goal? You wouldn't know unless you read all the text and numbers.

Read more »

There is definitely R in July

July 2, 2013
By
There is definitely R in July

The useR!2013 conference in Albacete, Spain, will commence next Wednesday, 10 July, and on the day before Diego and I will give a googleVis tutorial. The following Monday, 15 July, the first R in Insurance event will take place at Cass Business School ...

Read more »

Some Common Approaches for Analyzing Likert Scales and Other Categorical Data

July 2, 2013
By
Some Common Approaches for Analyzing Likert Scales and Other Categorical Data

Analyzing Likert scale responses really comes down to what you want to accomplish (e.g. Are you trying to provide a formal report with probabilities or are you trying to simply understand the data better). Sometimes a couple of graphs are sufficient and a formalize statistical test isn’t even necessary. However, with how easy it is […]

Read more »


Subscribe

Email:

  Subscribe