Amusement park attendance (could Wikipedia be wrong?!?)

September 20, 2017
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How do the North American amusement parks compare in popularity? If this question was to come up during a lunch discussion, I bet someone would pull out their smartphone and go to Wikipedia for the answer. But is Wikipedia the definitive answer - how can we tell if Wikipedia is wrong?

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The path of zip codes

September 18, 2017
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Toe bone connected to the foot bone, Foot bone connected to the leg bone, Leg bone connected to the knee bone,...              — American Spiritual, "Dem Bones" Last week I read an interesting article on Robert Kosara's data visualization blog. Kosara connected the geographic centers...
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WUSS 2017: The Papers

September 16, 2017
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WUSS 2017: The Papers

The Western Users of SAS Software 2017 conference is coming to Long Beach, CA, September 20-22.  I have been to a lot of SAS conferences, but WUSS is always my favorite because it is big enough for me to learn a lot, but small...
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Choose Your SAS Interface

September 15, 2017
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Choose Your SAS Interface

A while back, I wrote about the proliferation of interfaces for writing SAS programs.  I am reposting that blog here (with a few changes) because a lot of SAS users still don’t understand that they have a choice. These days SAS programmers have more...
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How to learn from The Dream Team of experts at Analytics Experience 2017…even if you’re not going

September 14, 2017
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You might not know it by looking at me (I’m rounding up when I tell people I’m 5’8”) but I’m a huge basketball fan. I’ve been following the sport since I was 10, coaching it for the last decade and playing on teams throughout...
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Simulate multivariate clusters in SAS

September 13, 2017
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This article shows how to simulate data from a mixture of multivariate normal distributions, which is also called a Gaussian mixture. You can use this simulation to generate clustered data. The adjacent graph shows three clusters, each simulated from a four-dimensional normal distribution. Each...
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Where do hurricanes strike Florida? (110 years of data)

September 12, 2017
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With Hurricane Irma recently pummeling pretty much the entire state of Florida, I got to wondering where past hurricanes have hit the state. Let's get some data, and figure out how to best analyze it using SAS software! I did a bit of web...
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Algorithmic pricing with Redis

September 12, 2017
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Algorithmic pricing with Redis


The algorithmic pricing is an exciting new area, and it combines engineering and mathematics. Chen’s paper has introduced the algorithmic pricing on Amazon Marketplace. This post is to discuss the implementation of an algorithmic pricing based on Redis...
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INSET in Proc SGPLOT

September 11, 2017
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INSET "Mean of the best percent change = &pmean." / position = bottomleft;Example: Click Here and Here
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