Some key Win-Vector serial data science articles

October 7, 2015
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Some key Win-Vector serial data science articles

As readers have surely noticed the Win-Vector LLC blog isn’t a stream of short notes, but instead a collection of long technical articles. It is the only way we can properly treat topics of consequence. What not everybody may have noticed is a number of these articles are serialized into series for deeper comprehension. The … Continue reading Some key Win-Vector serial data science articles

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Treasure Trove of R Scripts for Auto Classification, Chart Generation, Solr, Mongo, MySQL and Ton More

October 7, 2015
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In this repository hosted at github, the datadolph.in team is sharing all of the R codebase that it developed to analyze large quantities of data.datadolph.in team has benefited tremendously from fellow R bloggers and other open source communities and ...

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The butterfly curve

October 7, 2015
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The butterfly curve

I came across the butterfly curve, which was discovered by Temple Fay. The butterfly curve is produced by a parametric equation where: x = sin(t) * (e^cos(t)-2cos(λt)-sin(t/12)^5) and y = cos(t) * (e^cos(t)-2cos(λt)-sin(t/12)^5). Where t stands for time and λ for a user input variable. I used ggplot to create a plot of the butterfly … Read More →

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For a fact-based Worldview

October 7, 2015
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For a fact-based Worldview

Hans Rosling, co-founder and promoter of the Gapminder Foundation and of gapminder.org fights with statistics against myths (‘Our goal is to replace devastating myths with a fact-based worldview.’) and tries to counterbalance media focussing on war, conflicts and chaos. Here one more example (and this in a media interview…): ‘You can’t use media if you … Continue reading For a fact-based Worldview

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For a fact-based Worldview

October 7, 2015
By
For a fact-based Worldview

Hans Rosling, co-founder and promoter of the Gapminder Foundation and of gapminder.org fights with statistics against myths (‘Our goal is to replace devastating myths with a fact-based worldview.’) and tries to counterbalance media focussing on war, conflicts and chaos. Here one more example (and this in a media interview…): ‘You can’t use media if you … Continue reading For a fact-based Worldview

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Mindset interventions are a scalable treatment for academic underachievement — or not?

October 7, 2015
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Someone points me to this post by Scott Alexander, criticizing the work of psychology researcher Carol Dweck. Alexander looks carefully at an article, “Mindset Interventions Are A Scalable Treatment For Academic Underachievement,” by David Paunesku, Gregory Walton, Carissa Romero, Eric Smith, David Yeager, and Carol Dweck, and he finds the following: Among ordinary students, the […] The post Mindset interventions are a scalable treatment for academic underachievement — or not?…

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Tabulate counts when there are unobserved categories

October 7, 2015
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Tabulate counts when there are unobserved categories

Suppose that you are tabulating the eye colors of students in a small class (following Friendly, 1992). Depending upon the ethnic groups of these students, you might not observe any green-eyed students. How do you put a 0 into the table that summarizes the number of students who have each […] The post Tabulate counts when there are unobserved categories appeared first on The DO Loop.

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Stanford seminar

October 7, 2015
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Stanford seminar

I gave a seminar at Stanford today. Slides are below. It was definitely the most intimidating audience I’ve faced, with Jerome Friedman, Trevor Hastie, Brad Efron, Persi Diaconis, Susan Holmes, David Donoho and John Chambers all present (and probably other famous names I’ve missed). I’ll be giving essentially the same talk at UC Davis on […]

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The butterfly curve

October 7, 2015
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The butterfly curve

Have you ever thought drawing your own butterfly?

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The butterfly curve

October 7, 2015
By
The butterfly curve

I came across the butterfly curve, which was discovered by Temple Fay. The butterfly curve is produced by a parametric equation where: x = sin(t) * (e^cos(t)-2cos(λt)-sin(t/12)^5) and y = cos(t) * (e^cos(t)-2cos(λt)-sin(t/12)^5) . Where t stands for ...

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The Butterfly Curve

October 7, 2015
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The Butterfly Curve

Have you ever thought drawing your own butterfly? I came across the butterfly curve, which was discovered by Temple Fay. The butterfly curve is produced by a parametric equation where: x = sin(t) * (e^cos(t)-2cos(λt)-sin(t/12)^5) and y = cos(t) * (e^c...

Read more »

The butterfly curve

October 7, 2015
By
The butterfly curve

Have you ever thought drawing your own butterfly? I came across the butterfly curve, which was discovered by Temple Fay. The butterfly curve is produced by a parametric equation where: x = sin(t) * (e^cos(t)-2cos(λt)-sin(t/12)^5) and y = cos(t) *...

Read more »

The butterfly curve

October 7, 2015
By
The butterfly curve

Have you ever thought drawing your own butterfly? I came across the butterfly curve, which was discovered by Temple Fay. The butterfly curve is produced by a parametric equation where: x = sin(t) * (e^cos(t)-2cos(λt)-sin(t/12)^5) and y = cos(t) *...

Read more »

The butterfly curve

October 7, 2015
By
The butterfly curve

Have you ever thought drawing your own butterfly? I came across the butterfly curve, which was discovered by Temple Fay. The butterfly curve is produced by a parametric equation where: x = sin(t) * (e^cos(t)-2cos(λt)-sin(t/12)^5) and y = cos(t) *...

Read more »

The butterfly curve

October 7, 2015
By
The butterfly curve

Have you ever thought drawing your own butterfly? I came across the butterfly curve, which was discovered by Temple Fay. The butterfly curve is produced by a parametric equation where: x = sin(t) * (e^cos(t)-2cos(λt)-sin(t/12)^5) and y = cos(t) *...

Read more »

The butterfly curve

October 7, 2015
By
The butterfly curve

Have you ever thought drawing your own butterfly? I came across the butterfly curve, which was discovered by Temple Fay. The butterfly curve is produced by a parametric equation where: x = sin(t) * (e^cos(t)-2cos(λt)-sin(t/12)^5) and y = cos(t) *...

Read more »

The butterfly curve

October 7, 2015
By
The butterfly curve

Have you ever thought drawing your own butterfly? I came across the butterfly curve, which was discovered by Temple Fay. The butterfly curve is produced by a parametric equation where: x = sin(t) * (e^cos(t)-2cos(λt)-sin(t/12)^5) and y = cos(t) *...

Read more »

The butterfly curve

October 7, 2015
By
The butterfly curve

Have you ever thought drawing your own butterfly? I came across the butterfly curve, which was discovered by Temple Fay. The butterfly curve is produced by a parametric equation where: x = sin(t) * (e^cos(t)-2cos(λt)-sin(t/12)^5) and y = cos(t) *...

Read more »

PhDeidippides

October 6, 2015
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PhDeidippides

Anthony (who's doing good work in his PhD project) also doubles as a runner and has written a nice post for the Significance website.Clearly (just look at the numbers!), for many people this is a serious issue $-$ the fact that you can't run officially...

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Anti-cheating robots

October 6, 2015
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Paul Alper writes: Surely you would like to comment on the amazing escalation in the anti-cheating tech world. I predict it will be followed by some clever software which makes it appear that the student enrolled is actually the one taking the exam. Reminiscent of the height of the cold war of counter weapons and […] The post Anti-cheating robots appeared first on Statistical Modeling, Causal Inference, and Social Science.

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After seeing this chart, my mouth needed a rinse

October 6, 2015
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After seeing this chart, my mouth needed a rinse

The credit for today's headline goes to Andrew Gelman, who said something like that when I presented the following chart at his Statistical Graphics class yesterday: With this chart (which appeared in a large ad in the NY Times), Fidelity...

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R in Insurance 2016

October 6, 2015
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R in Insurance 2016

Following the successful 3rd R in Insurance conference in Amsterdam this year, we will return to London next year. We will be back at Cass Business School, 11 July 2016.The event will focus again on the use of R in insurance, bringing together experts ...

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PMXStan: an R package to facilitate Bayesian PKPD modeling with Stan

October 6, 2015
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PMXStan: an R package to facilitate Bayesian PKPD modeling with Stan

From Yuan Xiong, David A James, Fei He, and Wenping Wang at Novartis. Full version of the poster here. The post PMXStan: an R package to facilitate Bayesian PKPD modeling with Stan appeared first on Statistical Modeling, Causal Inference, and Social S...

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