The Extra Step: Graphs for Communication versus Exploration

January 12, 2014
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The Extra Step: Graphs for Communication versus Exploration

Visualization is a useful tool for data exploration and statistical analysis, and it’s an important method for communicating your discoveries to others. While those two uses of visualization are related, they aren’t identical. One of the reasons that I like ggplot so much is that it excels at layering together multiple views and summaries of […] Related posts: Revisiting Cleveland’s The Elements of Graphing Data in ggplot2 My Favorite Graphs…

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“At the risk of deviating from the standards of close reading, this requires some context”

January 12, 2014
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Mark Palko waxes indignant about corporate postmodernism. The post “At the risk of deviating from the standards of close reading, this requires some context” appeared first on Statistical Modeling, Causal Inference, and Social Science.

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English Professor Suddenly Realizes Students Will Believe Literally Anything She Says

January 12, 2014
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An Onion, via Shayna Connelly  http://www.theonion.com/articles/english-professor-suddenly-realizes-students-will,34911/ Being a teacher is an awesome responsibility. Use it wisely.  Remember: Only you can prevent forest fires. The rest of us just ...

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Guest Post: The Importance of Keeping Your CV/Resume Current

January 12, 2014
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Guest post by Robin Jeffries, copied from the niece* blog NorCalBiostat. My graduate advisor was adamant about me keeping my CV current. Every little consulting project, every award, presentation or co-authorship on a paper had to be on there. When I ...

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Converting a JAGS model to STAN

January 11, 2014
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For my first experience with STAN I wanted to convert my last JAGS program into STAN. This was a bit more difficult than I expected. The JAGS program was Fe concentration in rainwater including values below detection level.DataData has been explained b...

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Statistical Interests in Large Cities

January 11, 2014
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Statistical Interests in Large Cities

I always thought that there were some kind of schools in statistics, areas (not to say universities or laboratories) where people had common interest in term of statistical methodology. Like people with strong interest in extreme values, or in Lévy Processes. I wanted to check this point so I did extract information about articles puslished in about 35 journals in statistics, probability and econometrics. I got all the information in…

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Bias and MLE

January 11, 2014
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Bias and MLE

Before leaving the office, this evening, JP decided to knock at my door to ask me a “quick and very basic question” (as he put it). This is JP’s stategy, and he knows it works. His question was – more or less – what do we know about the bias in maximum likelihood estimation when we have a small sample, from a Gamma distribution. He was surprised by some results…

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3 years out of date on the whole Dennis the dentist thing!

January 10, 2014
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3 years out of date on the whole Dennis the dentist thing!

Paging Uri Simonsohn . . . January 2014: Alice Robb writes, completely uncritically: “If Your Name is Dennis, You’re More Likely to Become a Dentist The strange science of how names shape careers.” But look what you can learn from a quick google: Hmmmm, maybe worth following up on that second link . . . […]The post 3 years out of date on the whole Dennis the dentist thing! appeared…

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Porn capital of the porn nation

January 10, 2014
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Porn capital of the porn nation

The other day I was having a quick look at the newspapers and I stumbled on this article. Apparently, Pornhub (a website whose mission should be pretty clear) have analysed the data on their customers and found out that the town of Ware (Hertfords...

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Finding the R community a barrier to entry, Python looks elsewhere for lunch

January 10, 2014
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Tal Yarkoni's post on "The homogenization of scientific computing, or why Python is steadily eating other languages' lunch" is an enjoyable read of his transition from R to Python. He makes a good case, and I have no argument with his reasoning or the ...

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Next (EC)^2 Meeting December 2014, Barcelona, "Advances in Forecasting"

January 10, 2014
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Next (EC)^2 Meeting December 2014, Barcelona, "Advances in Forecasting"

Ever wonder what (EC)^2 means?  It's "European Conferences of the Econom[etr]ics Community." There have been many fine (EC)^2 metings over the years since its 1990 inception, recently under the capable leadership of Luc Ba...

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Do you believe that “humans and other living things have evolved over time”?

January 10, 2014
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Do you believe that “humans and other living things have evolved over time”?

The other day on the sister blog we discussed a recent Pew Research survey that seemed to show that Republicans are becoming more partisan about evolution (or, as Paul Krugman put it, “So what happened after 2009 that might be driving Republican views? . . . Republicans are being driven to identify in all ways […]The post Do you believe that “humans and other living things have evolved over time”?…

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Introduction to R for Quantitative Finance – Book Review

January 10, 2014
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Introduction to R for Quantitative Finance – Book Review

I used some spare time I had over the christmas break to review a book I came across: Introduction to R for Quantitative Finance. An introduction to the book by the authors can be found here. The book targets folks with some finance knowledge but no or little experience with R. Each chapter is organised around a […]

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Bayesian First Aid

January 10, 2014
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Bayesian First Aid

So I have a secret project. Come closer. I’m developing an R package that implements Bayesian alternatives to the most commonly used statistical tests. Yes you heard me, soon your t.testing days might be over! The package aims at being as easy as p...

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Machine Learning Lesson of the Day – Babies and Non-Statisticians Practice Unsupervised Learning All the Time!

Machine Learning Lesson of the Day – Babies and Non-Statisticians Practice Unsupervised Learning All the Time!

My recent lesson on unsupervised learning may make it seem like a rather esoteric field, with attempts to categorize it using words like “clustering“, “density estimation“, or “dimensionality reduction“.  However, unsupervised learning is actually how we as human beings often learn about the world that we live in – whether you are a baby learning […]

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San Fernando Valley cityscapes: An example of the benefits of fractal devastation?

January 9, 2014
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San Fernando Valley cityscapes:  An example of the benefits of fractal devastation?

I know we have some readers in the L.A. area and you might be interested in a comment on our recent post regarding the beneficial (in a Jane Jacobs sense) effects of selective devastation of micro-neighborhoods in a city. I gave the example of London after the fractal effects of bombing in WW2, and BMGM […]The post San Fernando Valley cityscapes: An example of the benefits of fractal devastation? appeared…

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Statistics eXplorer accessible for education and research

January 9, 2014
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Statistics eXplorer accessible for education and research

From: http://ncva.itn.liu.se/explorer?l=enStatistics eXplorer integrates many common InfoVis and GeoVis methods required to make sense of statistical data, uncover patterns of interests, gain insight, tell-a-story and finally communicate know...

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Hermann Goering and Jane Jacobs, together at last!

January 9, 2014
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Hermann Goering and Jane Jacobs, together at last!

Hermann Goering is famous for two things: 1. Being an air force general, and 2. Being a really bad air force general. What does this have to do, you may ask, with Jane Jacobs, who is famous for a book she wrote in the early 1960s advocating small, mixed-use street-level city development, in contrast to […]The post Hermann Goering and Jane Jacobs, together at last! appeared first on Statistical Modeling,…

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In which I ghost-write part 2 of Avinash’s post

January 9, 2014
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In my last post, I pointed you to Avinash's post about Reporting Squirrels versus Analysis Ninjas. My focus in that post is the underlying concern of "return on analytics" or lack thereof. This post takes up Avinash's argument directly. Think of this as part 2 of Avinash's post if he had kept on writing. Avinash's summary of his post is as follows: Reporting Squirrel type work has a minor incremental…

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Heterogeneous data

January 9, 2014
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I have a quibble with the following paragraph from Introducing Windows Azure for IT Professionals: The problem with big data is that it’s difficult to analyze it when the data is stored in many different ways. How do you analyze data that is distributed across relational database management systems (RDBMS), XML flat-file databases, text-based log […]

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Applied Statistics Lesson of the Day – Choosing the Range of Levels for Quantitative Factors in Experimental Design

Applied Statistics Lesson of the Day – Choosing the Range of Levels for Quantitative Factors in Experimental Design

In addition to choosing the number of levels for a quantitative factor in designing an experiment, the experimenter must also choose the range of the levels of the factor. If the levels are too close together, then there may not be a noticeable difference in the corresponding responses. If the levels are too far apart, […]

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MCMSki IV [day 3]

January 8, 2014
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MCMSki IV [day 3]

Already on the final day..! And still this frustration in being unable to attend three sessions at once… Andrew Gelman started the day with a non-computational talk that broached on themes that are familiar to readers of his blog, on the misuse of significance tests and on recommendations for better practice. I then picked the […]

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Bayes 2014 coming up nicely!

January 8, 2014
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Today I had a very useful teleconference with the other members of the organising committee for the Bayes Pharma 2014 conference. The new website is already up and running and we've included some information.We've nearly finalised all the details and t...

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