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Placing the digits of a number into a vector

I enjoy reading about the Le Monde puzzles (and other topics!) at Christian Robert's blog. Recently he asked how to convert a number with s digits into a numerical vector where each element of the vector contains the corresponding digit (by place value). For example, if the number is 4321,

Students & Educators
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Computer Science isn't just for geeks anymore

Computer science is more than the pursuit of "let's see what we can make this computer do." If that's your only goal, then you might make a fine computer geek, but a lousy computer scientist. In her blog post for Computer Science Education Week, Caroline McCullen reminds us that computer

Customer Intelligence
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The internal relevance of marketing

I’ll never forget the first time many years ago that I saw the Dilbert cartoon by Scott Adams showing Dilbert getting transferred to marketing, approaching a doorway that says “Welcome to Marketing - Two Drink Minimum.” I found it so funny until I realized that my friends in IT and

Analytics
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To code or not to code, that is the question...

A professional acquaintance and an expert in statistics once told me that if you don't understand how to perform the process of analytics through programming - the creation of the data flow, the transformation of the variables and the development of the statistical procedure - then you had no business

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Shorthand notation for row and column operations

The SAS/IML language enables you to perform matrix-vector computations. However, it also provides a convenient "shorthand notation" that enables you to perform elementwise operation on rows or columns in a natural way. You might know that the SAS/IML language supports subscript reduction operators to compute basic rowwise or columnwise quantities.

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Forecasting's Eternal Questions

I'm back in the office after two enjoyable days at the Internet Summit in Raleigh, NC. (I hadn't seen that many nerds since the family reunion on my dad's side.) Among the many good sessions was one about building your blog audience by making the blog more search friendly. The

Analytics
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