Why is this chart so damn hard to read?

June 8, 2016
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Why is this chart so damn hard to read?

My summer course on analytical methods is already at the midway point. I was doing some research on recommendation systems the other day, and came across the following chart: Ouch. This is from the Park, et. al. (2012) survey of...

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Donald Trump and Joe McCarthy

June 8, 2016
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He built . . . a coalition of the aggrieved—of men and women not deranged but affronted by various tendencies over the previous two or three decades . . . That’s political reporter Richard Rovere in his 1958 classic, “Senator Joe McCarthy.” I hate to draw an analogy between McCarthy and Donald Trump because it […] The post Donald Trump and Joe McCarthy appeared first on Statistical Modeling, Causal Inference,…

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Lasagna plots in SAS: When spaghetti plots don’t suffice

June 8, 2016
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Lasagna plots in SAS: When spaghetti plots don’t suffice

Last week I discussed how to create spaghetti plots in SAS. A spaghetti plot is a type of line plot that contains many lines. Spaghetti plots are used in longitudinal studies to show trends among individual subjects, which can be patients, hospitals, companies, states, or countries. I showed ways to […] The post Lasagna plots in SAS: When spaghetti plots don't suffice appeared first on The DO Loop.

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R Passes SAS in Scholarly Use (finally)

June 8, 2016
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R Passes SAS in Scholarly Use (finally)

Way back in 2012 I published a forecast that showed that the use of R for scholarly publications would likely pass the use of SAS in 2015. But I didn’t believe the forecast since I expected the sharp decline in SAS … Continue reading →

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The ANU Tapes of the British (Econometrics) Invasion

June 7, 2016
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The ANU Tapes of the British (Econometrics) Invasion

As far as I know, the Beatles never performed at the Australian National University (the ANU). But the "fab. three" certainly did, and we're incredibly lucky to have the visual recordings to prove it!Stan Hurn (Chair of the Board of the National Centre...

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Social problems with a paper in Social Problems

June 7, 2016
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Social problems with a paper in Social Problems

Here’s the story. In 2010, sociologists Aliya Saperstein and Andrew Penner published in the journal Social Problems a paper, “The race of a criminal record: How incarceration colors racial perceptions,” reporting: This study extends the conversation by exploring whether being incarcerated affects how individuals perceive their own race as well as how they are perceived […] The post Social problems with a paper in Social Problems appeared first on Statistical…

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There is still only one test

June 7, 2016
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There is still only one test

In 2011 I wrote an article called "There is Only One Test", where I explained that all hypothesis tests are based on the same framework, which looks like this:Here are the elements of this framework:1) Given a dataset, you compute a test statistic that...

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On deck this week

June 7, 2016
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Social problems with a paper in Social Problems Donald Trump and Joe McCarthy “What is a good, convincing example in which p-values are useful?” “How One Study Produced a Bunch of Untrue Headlines About Tattoos Strengthening Your Immune System” No, I’m not convinced by this one either. How to design a survey so that Mister […] The post On deck this week appeared first on Statistical Modeling, Causal Inference, and…

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the new version of abcrf

June 6, 2016
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the new version of abcrf

A new version of the R package abcrf has been posted on Friday by Jean-Michel Marin, in conjunction with the recent arXival of our paper on point estimation via ABC and random forests. The new R functions come to supplement the existing ones towards implementing ABC point estimation: covRegAbcrf, which predicts the posterior covariance between […]

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Stan workshop this Thurs NYC

June 6, 2016
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Jonah is speaking at the Bayesian Data Analysis meetup on Thursday night, “Stan Workshop. Life is precious: fix your sampling problems.” He’ll focus on common problems using MCMC and how to address them. For registration: http://www.m...

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Rexer Data Science Survey: Satisfaction Results

June 6, 2016
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Rexer Data Science Survey: Satisfaction Results

by Bob Muenchen I previously reported on the initial results of Rexer Analytics’ 2015 survey of data science tools here. More results are now available, and the comprehensive report should be released soon.  One of the more interesting questions on the survey … Continue reading →

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R Training at Nicholls State University

June 6, 2016
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R Training at Nicholls State University

I’ll be presenting two workshops back-to-back at Nicholls State University in Thibodaux Louisiana June 14-16. The first workshop will cover a broad range of R topics. Each topic will include a brief comparison to how R differs from the popular … Continue reading →

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Changing everything at once: Student-centered learning, computerized practice exercises, evaluation of student progress, and a modern syllabus to create a completely new introductory statistics course

June 6, 2016
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I’m speaking at the Electronic Conference on Teaching Statistics on Mon 16 May at 11am. I’ve given many remote talks but this is the first time I’ve spoken at an all-electronic conference. It will be a challenge. In a live talk, everyone’s just sitting in the room staring at you, but in an electronic conference […] The post Changing everything at once: Student-centered learning, computerized practice exercises, evaluation of student…

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Fixed Effects Without Panel Data

June 6, 2016
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Consider a pure cross section (CS) of size N.  Generally you'd like to allow for individual effects, but you can't, because OLS with a full set of N individual dummies is conceptually infeasible. (You'd exhaust degrees of freedom.) That's usually ...

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How to write CONTRAST and ESTIMATE statements in SAS regression procedures

June 6, 2016
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How to write CONTRAST and ESTIMATE statements in SAS regression procedures

I got several positive comments about a recent tip, "How to fit a variety of logistic regression models in SAS." A reader asked if I knew any other similar resources about statistical analysis in SAS. Absolutely! One gem that comes to mind is "Examples of writing CONTRAST and ESTIMATE statements." […] The post How to write CONTRAST and ESTIMATE statements in SAS regression procedures appeared first on The DO Loop.

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Building the Data Matrix for the Task at Hand and Analyzing Jointly the Resulting Rows and Columns

June 6, 2016
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Building the Data Matrix for the Task at Hand and Analyzing Jointly the Resulting Rows and Columns

Someone decided what data ought to go into the matrix. They placed the objects of interest in the rows and the features that differentiate among those objects into the columns. Decisions were made either to collect information or to store what was gath...

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Building the Data Matrix for the Task at Hand and Analyzing Jointly the Resulting Rows and Columns

June 6, 2016
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Building the Data Matrix for the Task at Hand and Analyzing Jointly the Resulting Rows and Columns

Someone decided what data ought to go into the matrix. They placed the objects of interest in the rows and the features that differentiate among those objects into the columns. Decisions were made either to collect information or to store what was gath...

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Little Debate: defining baseline

June 5, 2016
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Little Debate: defining baseline

In an April 30, 2015 note in Nature (vol 520, p. 612), Jeffrey Leek and Roger Peng note that p-values get intense scrutiny, while all the decisions that lead up to the p-values get little debate. I wholeheartedly agree, and so I'm creating a Littl...

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Researchers demonstrate new breakthrough in public relations, promoting a study before it appears in Psychological Science or PPNAS

June 5, 2016
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Researchers demonstrate new breakthrough in public relations, promoting a study before it appears in Psychological Science or PPNAS

Ivan Oransky pointed me to this press release: Study finds honesty varies significantly between countries Research from the University of East Anglia (UEA) has found that people’s honesty varies significantly between countries. It also suggests that honesty is less important to a country’s current economic growth than during earlier periods in history. The study examined […] The post Researchers demonstrate new breakthrough in public relations, promoting a study before it…

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Taking responsibility for your statistical conclusions: You must decide what variation to compare to.

June 4, 2016
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Taking responsibility for your statistical conclusions:  You must decide what variation to compare to.

A couple people pointed me to a recent paper by Josh Terrell, Andrew Kofink, Justin Middleton, Clarissa Rainear, Emerson Murphy-Hill​, and Chris Parnin, “Gender bias in open source: Pull request acceptance of women versus men.” The term “bias” seems a bit loaded given the descriptive nature of their study. That said, it’s good for people […] The post Taking responsibility for your statistical conclusions: You must decide what variation to…

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Causal Estimation and Millions of Lives

June 3, 2016
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This just in from a fine former Ph.D. student.  He returned to India many years ago and made his fortune in finance.  He's now devoting himself the greater good, working with the Bill and Melinda Gates Foundation.I reminded him that I'm not l...

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Large enough probability?

June 3, 2016
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Large enough probability?

I've deliberately stayed away from the Brexit referendum (that is in terms of spending time doing some modelling to see what the predictions may be) $-$ mostly because I was otherwise busy and didn't really have much time. However, I was talking e...

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Who falls for the education reform hype?

June 3, 2016
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Phillip Middleton writes: My wife is a 5th grade teacher, in Texas, in a title I school (free lunch, other subsidies, poor and emotionally disturbed kids, CPS cases, you name it) on the west side of San Antonio. There are a number of things I’ve been exposed to as a result, the net of which […] The post Who falls for the education reform hype? appeared first on Statistical Modeling,…

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