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Posted 3 days ago (via andrewgelman.com)

You’ve heard of multiverse analysis, which is an attempt to map out the garden of forking paths. Others are interested in this topic too. Carol Nickerson pointed me to this paper by Jan Wacker with a more formal version of the multiverse idea.
The post A more formal take on the multiverse appeared first on Statistical Modeling, Causal Inference, and Social Science.
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Posted 3 days ago (via andrewgelman.com)

Javier Benitez points us to an article by Daniele Fanelli, “Is science really facing a reproducibility crisis, and do we need it to?”, published in the Proceedings of the National Academy of Sciences, which begins: Efforts to improve the reproducibility and integrity of science are typically justified by a narrative of crisis, according to which […]
The post Reasons for an optimi...

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Posted 3 days ago (via flowingdata.com)

Kofi Annan for Nature on the importance of data in ending poverty and…Tags: gaps, hunger...

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Posted 3 days ago (via rjlipton.wordpress.com)

A revel and revelation in Sweden Cropped from “Knuth at Brown” video source Donald Knuth’s 80th=0x50th birthday was on January 10. In the array of his birthdays, numbering from zero so that stands for his birth day in 1938, that was indeed . However, as the 81st entry in the array it might have to […]...

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Posted 4 days ago (via mathlesstraveled.com)

[Disclosure of Material Connection: The AMS kindly provided me with a free review copy of this book. I was not required to write a positive review. The opinions expressed are my own.] An Illustrated Theory of Numbers Martin H. Weissman … Continue reading →...

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Posted 4 days ago (via blog.computationalcomplexity.org)

(All math in this article is here)
A while back I posted about a proof that Van Der Waerden's theorem implies the number of primes
is infinite (see the post here). That post brought up some logical issues.
More recently there is another proof that the primes are infinite that raises (for me at least) some number theory results and proofs. The proof uses the following theorem:There are no...

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Posted 4 days ago (via flowingdata.com)

Many cities provide free bus tickets for homeless people who want to relocate.…Tags: Guardian, homeless...

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Posted 4 days ago (via andrewgelman.com)

Jay Livingston writes: Your recent post and the linked article on storytelling reminded me of Murray Davis’s article on theory, which has some of the same themes. I haven’t reread it in a long time, so my memory of the details is hazy. Here are the first two paragraphs, which might give you an idea […]
The post Murray Davis on learning from stories appeared first on Statistical M...

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Posted 4 days ago (via andrewgelman.com)

Thanks in advance! P.S. Jaime Ashander sent in a photo. Thanks, Jaime!
The post Hey, could somebody please send me a photo of a cat reading a Raymond Carver story? appeared first on Statistical Modeling, Causal Inference, and Social Science.
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Posted 4 days ago (via andrewgelman.com)

I was having this discussion with Dan Kahan, who was arguing that my ideas about type M and type S error, while mathematically correct, represent a bit of a dead end in that, if you want to evaluate statistically-based scientific claims, you’re better off simply using likelihood ratios or Bayes factors. Kahan would like to […]
The post Incorporating Bayes factor into my understanding o...