Blog Archives

Preview of my book – Modeling data with functional programming in R

September 21, 2013
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Preview of my book – Modeling data with functional programming in R

As some of you know, I’ve been writing a book (to be published by CRC Press/Chapman & Hall and released …Continue reading »

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Church numerals in R (or how to prove the existence of natural numbers using the lambda calculus)

September 18, 2013
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Church numerals in R (or how to prove the existence of natural numbers using the lambda calculus)

One area of math that I’ve always been enamored with is the proof of numbers. The simplicity of the starting …Continue reading »

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Pricing interest rate swaps with lambda.r

July 19, 2013
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Pricing interest rate swaps with lambda.r

People think I’m joking when I say something should only take 20 lines of code. More often than not it …Continue reading »

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Futile.logger 1.3.3 available on CRAN

July 17, 2013
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Futile.logger 1.3.3 available on CRAN

The latest version of futile.logger, which I previewed back in May is now on CRAN. Thanks to Kirill Müller, the documentation …Continue reading »

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Lambda.r 1.1.2 released to CRAN

July 11, 2013
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Lambda.r 1.1.2 released to CRAN

This was mostly a bug scrub to improve the stability and robustness of the package. As always, the package is …Continue reading »

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Detecting regime change in irregular time series

July 11, 2013
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Detecting regime change in irregular time series

In my current research, I am modeling consumer spending behavior to predict future income and spending. To do this I …Continue reading »

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Types in lambda.r versus classes in S4

July 10, 2013
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Types in lambda.r versus classes in S4

Here’s a quick example of the power of lambda.r and how it simplifies the programming model. On the r-devel mailing …Continue reading »

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The equivalence of the ellipsis argument and an infinite set of closures

June 14, 2013
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The equivalence of the ellipsis argument and an infinite set of closures

This post is about a practical application of a topic I discuss in my book. In my book, I prove …Continue reading »

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Futile.logger 1.3.3 RC available

May 29, 2013
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Futile.logger 1.3.3 RC available

This is a preview release of futile.logger 1.3.3 so some people with feature requests can try out the code before …Continue reading »

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Better logging in R (aka futile.logger 1.3.0 released)

March 10, 2013
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Better logging in R (aka futile.logger 1.3.0 released)

In many languages logging is now part of the batteries included with a language. This isn’t yet the case in …Continue reading »

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