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Move beyond spreadsheets to data mining, forecasting, optimization – and more

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Rick WicklinFebruary 2, 2011 0

One of my New Year's resolutions is to learn a new area of statistics. I'm off to a good start, because I recently investigated an issue which started me thinking about spatial statistics—a branch of statistics that I have never formally studied. During the investigation, I asked myself: Given an

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Rick WicklinJanuary 31, 2011 0

Reshaping data from wide to long format

As Cat Truxillo points out in her recent blog post, some SAS procedures require data to be in a "long" (as opposed to "wide") format. Cat uses a DATA step to convert the data from wide to long format. Although there is nothing wrong with this approach, I prefer to

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Rick WicklinJanuary 28, 2011 0

Random uniform versus uniformly spaced: Applying statistics to show choir

I sing in the SAS-sponsored VocalMotion show choir. It's like an adult version of Glee, except we have more pregnancies and fewer slushie attacks. For many musical numbers, the choreographer arranges the 20 performers on stage in an orderly manner, such as four rows of five singers. But every once

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