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digs
Permanent link - Posted 12 days ago (via flowingdata.com)
For when you want to show or compare several distributions but don't have a lot of space.Tags: distributions, R...
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digs
Permanent link - Posted 13 days ago (via flowingdata.com)
Lidar, which is like radar but with lasers instead of radio waves, can provide high-detail surveys of the land. The state of Washington is using the tool for beautiful results.…Tags: Lidar, surveying...
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digs
Permanent link - Posted 13 days ago (via flowingdata.com)
This looks like a fun Processing tutorial by Etienne Jacob. Use noise to draw organic-ish loopy GIFs. I bet the logic could be ported to R.…Tags: GIF, noise, Processing...
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digs
Permanent link - Posted 13 days ago (via andrewgelman.com)
Amos Elberg writes: I’m writing to let you know about a drug trial you may find interesting from a statistical perspective. As you may know, the relatively recent “orphan drug” laws allow (basically) companies that can prove an off-patent drug treats an otherwise untreatable illness, to obtain intellectual property protection for otherwise generic or dead […] The post Orpha...
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digs
Permanent link - Posted 13 days ago (via andrewgelman.com)
[cat picture] We haven’t run any Ray Keene material for awhile but this is just too good to pass up: Yup, those communists have real trouble pushing to the top when it comes to chess, huh? P.S. to Chrissy: If you happen to be reading this, my advice to you is to not take stuff […] The post Popular expert explains why communists can’t win chess championships! appeared first on Sta...
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digs
Permanent link - Posted 14 days ago (via andrewgelman.com)
Jonathan Falk points to this book excerpt by Michael Lewis, who writes: A lot of what people did and said when they “predicted” things, Morey now realized, was phony: pretending to know things rather than actually knowing things. There were a great many interesting questions in the world to which the only honest answer was, […] The post A new definition of the nerd? appeared first on Sta...
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digs
Permanent link - Posted 15 days ago (via mathlesstraveled.com)
In my last post I explained the first proof of Fermat’s Little Theorem: in short, and hence . Today I want to show how to generalize this to prove Euler’s Totient Theorem, which is itself a generalization of Fermat’s Little … Continue reading →...
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digs
Permanent link - Posted 15 days ago (via mathlesstraveled.com)
In a previous post I explained four (mostly) equivalent statements of Fermat’s Little Theorem (which I will abbreviate “FlT”—not “FLT” since that usually refers to Fermat’s Last Theorem, whose proof I am definitely not qualified to write about!). Today I … Continue reading →...
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digs
Permanent link - Posted 15 days ago (via mathlesstraveled.com)
In my previous post I explained three variants on Fermat’s Little Theorem, as well as a fourth, slightly more general variant, which it turns out is often called Euler’s Totient Theorem. Here’s what I said: If and is any integer, … Continue reading →...
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digs
Permanent link - Posted 15 days ago (via mathlesstraveled.com)
In my previous post I mentioned Fermat’s Little Theorem, a beautiful, fundamental result in number theory that underlies lots of things like public-key cryptography and primality testing. (It’s called “little” to distinguish it from his (in)famous Last Theorem.) There are … Continue reading →...
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