How The Rainbow Color Map Misleads

July 8, 2013
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How The Rainbow Color Map Misleads

Colors are perhaps the visual property that people most often misuse in visualization without being aware of it. Variations of the rainbow colormap are very popular, and at the same time the most problematic and misleading. The rainbow color map is based on the colors in the light spectrum, and is sometimes done correctly, sometimes the colors are in the wrong order. Quick, name the colors in the rainbow in order!…

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Oh Ordinal data, what do we do with you?

July 7, 2013
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Oh Ordinal data, what do we do with you?

What can you do with ordinal data? Or more to the point, what shouldn’t you do with ordinal data? First of all, let’s look at what ordinal data is. It is usual in statistics and other sciences to classify types … Continue reading →

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change in weight of cars plot

July 7, 2013
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change in weight of cars plot

Based on last week's faster algorithm I wanted to finish with car weights. Unfortunately a fail again. By now it is a fail of myself, it needs a bit more dedication and grunt than I am willing and able to give for this blog. This week I added...

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Stereotype threat!

July 7, 2013
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Colleen Ganley, Leigh Mingle, Allison Ryan, Katherine Ryan, Marian Vasilyeva, and Michelle Perry write: Stereotype threat has been proposed as 1 potential explanation for the gender difference in standardized mathematics test performance among high-performing students. At present, it is not entirely clear how susceptibility to stereotype threat develops, as empirical evidence for stereotype threat effects [...]The post Stereotype threat! appeared first on Statistical Modeling, Causal Inference, and Social Science.

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Bad news bears: ‘Bayesian bear’ rejoinder-reblog mashup

July 6, 2013
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Bad news bears: ‘Bayesian bear’ rejoinder-reblog mashup

Oh No! It’s those mutant bears again. To my dismay, I’ve been sent, for the third time, that silly, snarky, adolescent, clip of those naughty “what the p-value” bears (first posted on Aug 5, 2012), who cannot seem to get a proper understanding of significance tests into their little bear brains. So apparently some people […]

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Data analysis on the NetBeans Platform

July 6, 2013
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Building any large application always involves a considerable amount of planning and thought to how the infrastructure of the software is going to be implemented. Decisions on the number of windows and views as well as how all the components communicat...

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How to think about papers published in low-grade journals?

July 6, 2013
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We’ve had lots of lively discussions of fatally-flawed papers that have been published in top, top journals such as the American Economic Review or the Journal of Personality and Social Psychology or the American Sociological Review or the tabloids. And we also know about mistakes that make their way into mid-ranking outlets such as the [...]The post How to think about papers published in low-grade journals? appeared first on Statistical…

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A Recipe for Trellis/Faceted Plots Using Base R Graphics

July 6, 2013
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A Recipe for Trellis/Faceted Plots Using Base R Graphics

I frequently use lattice and ggplot2 to create trellis/faceted graphics. But, I gave up using these packages in a recent application, where I had initially constructed a complex graphic using the base R plotting functions. When I later decided that I wanted a faceted version, there was a dilema: re-create the complex graphic using lattice […]

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“Numbersense: How to use big data to your advantage”

July 5, 2013
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Business statistician Kaiser Fung just came out with another book, this one full of stories about how organizations use data: 1. Why do law school deans send each other junk mail? 2. Can a new statistic make us less fat? 3. How can sellouts ruin a business? 4. Will personalizing deals save Groupon? 5. Why [...]The post “Numbersense: How to use big data to your advantage” appeared first on Statistical…

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More plain old everyday Bayesianism

July 5, 2013
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Following up on this story, Bob Goodman writes: A most recent issue of the New England Journal of Medicine published a study entitled “Biventricular Pacing for Atrioventricular Block and Systolic Dysfunction,” (N Engl J Med 2013; 368:1585-1593), whereby “A hierarchical Bayesian proportional-hazards model was used for analysis of the primary outcome.” It is the first [...]The post More plain old everyday Bayesianism appeared first on Statistical Modeling, Causal Inference, and…

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Know your data 12: Your last 200 snapchats

July 5, 2013
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I will never understand why people believe Snapchat when they say the photos would disappear after a set time. Nothing digital ever really disappears. It is long known that deleting a file on your PC does not eliminate it. It is also known that the entire Internet Protocal (IP) is based on replication--copies of the same file can be found on a lot of servers. My colleague showed me this…

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Obtain data sets from the book Statistical Programming with SAS/IML Software

July 5, 2013
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Obtain data sets from the book Statistical Programming with SAS/IML Software

On the Web site for the book Statistical Programming with SAS/IML Software, I provide instructions on how to download the sample data sets and install them so that they can be used from within SAS/IML Studio. When I wrote the book I did not anticipate that SAS users might want [...]

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Day out in Bristol (2)

July 5, 2013
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Day out in Bristol (2)

PS (to the previous post): [I'm assuming] during a break from taking care of her own XX, Silvia points out that the graffiti in the picture here is nothing less than an original Bansky, pretty much as this one, which I see every morning on my way to wo...

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ggplot2 Choropleth of Supreme Court Decisions: A Tutorial

July 5, 2013
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ggplot2 Choropleth of Supreme Court Decisions: A Tutorial

I don't do much GIS but I like to. It's rather enjoyable and involves a tremendous skill set. Often you will find your self grabbing data sets from some site, scraping, data cleaning and reshaping, and graphing. On the ride … Continue reading →

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Day out in Bristol

July 4, 2013
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Day out in Bristol

Long day, today, as I went to Bristol for a workshop on the expected value of information, specifically for health economic evaluation.I like Bristol $-$ I've only been a couple of times, really, but it feels like a fun place (as suggested by the aweso...

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Fourth of July data/statistics link roundup (7/4/2013)

July 4, 2013
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An interesting post about how lots of people start out in STEM majors but eventually bail because they are too hard. They recommend either: (1) we better prepare high school students or (2) we make STEM majors easier. I like … Continue reading →

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“Versatile, affordable chicken has grown in popularity”

July 4, 2013
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“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…

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

July 4, 2013
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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 […]

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Bayes pays!

July 4, 2013
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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.

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Update: Extending Commodity time series

July 4, 2013
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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 […]

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

July 3, 2013
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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, […]

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Facts and fallacies of the AIC

July 3, 2013
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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…

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Plan B

July 3, 2013
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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...

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