The Swiss army knife is known for its versatility, with a variety of tools and blades to help you complete the task at hand. When you are creating graphics, you sometimes have a special feature you want to add, but you can't seem to find the right syntax "tool" to
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Graphical swiss army knife
Data and data crunchers rule: Analytics 2012
Unlike many of you, data hasn’t always ruled my world. Though I took statistics and economics classes in college, I built my academic career around studying history and writing papers like “The Importance of the Family Dinner in Preserving the Italian Culture among Immigrants.” Don’t laugh; it earned me an
Programming tip: Avoid testing floating-point values for equality
No matter what statistical programming language you use, be careful of testing for an exact value of a floating-point number. This is known in the world of numerical analysis as "10.0 times 0.1 is hardly ever 1.0" (Kernighan and Plauger, 1974, The Elements of Programming Style). There are many examples