Inside joke for data analysts (via Gelman)

September 28, 2016
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Inside joke for data analysts (via Gelman)

Andrew Gelman suggested this sign in a recent blog post: This is patterned after a similar sign that used to show up at auto mechanics: For those needing background, see this post.

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“Find the best algorithm (program) for your dataset.”

September 28, 2016
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Piero Foscari writes: Maybe you know about this already, but I found it amazingly brutal; while looking for some reproducible research resources I stumbled onto the following at mlcomp.org (which would be nice if done properly, at least as a standardization attempt): Find the best algorithm (program) for your dataset. Upload your dataset and run existing programs on it to […] The post “Find the…

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Meet the New Logo and Theme!

September 28, 2016
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Meet the New Logo and Theme!

This site has gone through many different looks and designs. I haven't kept count, but I'd be surprised if it was fewer than ten. So far, they have all either been off-the-shelf generic designs or ones I had created myself. For its tenth birthday, I decided to splurge and get eagereyes a complete makeover: a new theme and a […]

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Distances between observations in two groups

September 28, 2016
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Distances between observations in two groups

Last week I showed how to find the nearest neighbors for a set of d-dimensional points. A SAS user wrote to ask whether something similar could be done when you have two distinct groups of points and you want to find the elements in the second group that are closest […] The post Distances between observations in two groups appeared…

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The Mystery of Palantir Continues

September 28, 2016
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Palantir, the secretive data science/consulting/software company, continues to be a mystery to most people, but recent reports have not been great. Reuters reports that the U.S. Department of Labor is suing it for employment discrimination: The law...

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I refuse to blog about this one

September 27, 2016
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I refuse to blog about this one

Shravan points me to this article, Twitter Language Use Reflects Psychological Differences between Democrats and Republicans, which begins with the following self-parody of an abstract: Previous research has shown that political leanings correlate with various psychological factors. While surveys and experiments provide a rich source of information for political psychology, data from social networks can […] The post I refuse…

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The Controversies

September 27, 2016
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The Controversies

I have opinions. I state those opinions. Not everybody likes my opinions. And sometimes it's not just a matter of opinion, but also of tone and approach. Criticism can be a useful tool or it can be an angry attack. Figuring out which is which isn't always easy while you're doing it. Why Be Controversial? When […]

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Fitting a distribution in Stan from scratch

September 27, 2016
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Fitting a distribution in Stan from scratch

Last week the French National Institute of Health and Medical Research (Inserm) organised with the Stan Group a training programme on Bayesian Inference with Stan for Pharmacometrics in Paris. Daniel Lee and Michael Betancourt, who run the course over ...

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Thinking like a statistician: this is not the election for progressives to vote third party

September 27, 2016
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Thinking like a statistician: this is not the election for progressives to vote third party

Democratic elections permit us to vote for whomever we perceive has the highest expectation to do better with the issues we care about. Let’s simplify and assume we can quantify how satisfied we are with an elected official’s performance. Denote th...

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A book on RStan in Japanese: Bayesian Statistical Modeling Using Stan and R (Wonderful R, Volume 2)

September 26, 2016
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A book on RStan in Japanese: Bayesian Statistical Modeling Using Stan and R (Wonderful R, Volume 2)

Wonderful, indeed, to have an RStan book in Japanese: Kentarou Matsuura. 2016. Bayesian Statistical Modeling Using Stan and R. Wonderful R Series, Volume 2. Kyoritsu Shuppan Co., Ltd. Google translate makes the following of the description posted on Amazon Japan (linked from the title above): In recent years, understanding of the phenomenon by fitting a […] The post A book…

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Looking at the polls: Time to get down and dirty with the data

September 26, 2016
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Looking at the polls:  Time to get down and dirty with the data

Poll aggregation is great, but one thing that we’ve been saying a lot recently (see also here) is that we can also learn a lot by breaking open a survey and looking at the numbers crawling around inside. Here’s a new example. It comes from Alan Abramowitz, who writes: Very strange results of new ABC/WP […] The post Looking at…

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Eagereyes’ Early History

September 26, 2016
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Eagereyes’ Early History

Just ahead of the first decade of this website's history clicking over, here's a look back at where things started. Some of those postings were terrible, some of them were quite prescient or are even still popular. This is partly why I created the interactive posting calendar. It makes it easy browse postings just by […]

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Bayes’s Theorem is not optional

September 26, 2016
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Bayes’s Theorem is not optional

Abstract: I present a probability puzzle, the Rain in Seattle Problem, and use it to explain differences between the Bayesian and frequentist interpretations of probability, and between Bayesian and frequentist statistical methods.  Since I am try...

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IMAODBC 2016: And the winner is…

September 26, 2016
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IMAODBC 2016: And the winner is…

The Best Presentation Award of the International Marketing and Output Database Conference IMAODBC 2016 in Gozd Martuljek, Slovenia goes to Susanne Hagenkort-Rieger and her team from DESTATIS (Statistisches Bundesamt, Germany). In her presentation Susanne highlighted the importance of web search statistics  and why intuition when emphasizing selected statistical data is often not sufficient. To achieve … Continue reading IMAODBC 2016:…

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Fascinating Conference at Chicago

September 26, 2016
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I just returned from the University of Chicago conference, "Machine Learning: What's in it for Economics?"  Lots of cool things percolating.  I'm teaching a Penn Ph.D. course later this fall on aspects of the ML/econometrics interface.  ...

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Create an ogive in SAS

September 26, 2016
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Create an ogive in SAS

My son is taking an AP Statistics course in high school this year. AP Statistics is one of the fastest-growing AP courses, so I welcome the chance to see topics and techniques in the course. Last week I was pleased to see that they teach data exploration techniques, such as […] The post Create an ogive in SAS appeared first…

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No statistically significant differences for get up and go

September 26, 2016
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Anoop Balachandran writes: This is one of the abstracts of the paper i am about to publish: My question is can I really say both training program were effective for increasing power and function? Studies of similar duration employing sedentary control showed either negative or 1-2% changes. Also, I don’t think strength and function will […] The post No statistically…

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The Ten Years of EagerEyes Blogstravaganza

September 26, 2016
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The Ten Years of EagerEyes Blogstravaganza

October 1 marks the ten-year anniversary of this website. Well, it’s really older than that, but the first posting in its modern history is dated October 1, 2006. To celebrate, this week will see a posting every day, so hold on to your hats! If you’re reading this in a feed reader, you might want […]

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Facebook and left censoring

September 26, 2016
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From the Wall Street Journal: Several weeks ago, Facebook disclosed in a post on its “Advertiser Help Center” that its metric for the average time users spent watching videos was artificially inflated because it was only factoring in video view...

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Politics and chance

September 25, 2016
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After the New Hampshire primary Nadia Hassan wrote: Some have noted how minor differences in how the candidates come out in these primaries can make a huge difference in the media coverage. For example, only a few thousand voters separate third and fifth and it really impacts how pundits talk about a candidate’s performance. Chance […] The post Politics and…

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Windows 10 anniversary updates includes a whole Linux layer – this is good news for data scientists

September 24, 2016
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Windows 10 anniversary updates includes a whole Linux layer – this is good news for data scientists

If you are on Windows 10, no doubt you have heard that Microsoft included the bash shell in its 2016 Windows 10 anniversary update. What you may not know is that this is much, much more than just the bash shell. This is a whole Linux layer that enables...

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Cracks in the thin blue line

September 24, 2016
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Cracks in the thin blue line

When people screw up or cheat in their research, what do their collaborators say? The simplest case is when coauthors admit their error, as Cexun Jeffrey Cai and I did when it turned out that we’d miscoded a key variable in an analysis, invalidating the empirical claims of our award-winning paper. On the other extreme, […] The post Cracks in…

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Making sense of the most detailed map of gay marriages

September 23, 2016
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Making sense of the most detailed map of gay marriages

Last week, my Columbia students discussed this nice article in the New York Times called "The Most Detailed Map of Gay Marriages in America". (link) The center of the article is this map: I asked the students to identify the problem that this dataviz is supposed to address. Someone responded that it tells us where gay married couples are found…

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