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Advanced R Profiling with pbdPAPI
R has some extremely useful utilities for profiling, such as system.time(), Rprof(), the often overlooked tracemem(), and the rbenchmark package. But if you want more than just simple timings of code...
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"F-bombs" in GitHub Commits (warning: contains profanity)
Warning: this post contains profanity...arguably excessive amounts of it. If you are a humorless no-fun, you are recommended to proceed no further. Seriously though, the title is quite descriptive of...
View ArticleA New Use for Pipes in R: Forkbombs
Almost 3 years ago, I wrote about how to forkbomb with R. A quick recap is that a forkbomb is a low-tier, malicious misuse of a system; sort of a "baby's first denial of service". The idea is that you...
View ArticleIntroducing Rfiglet: ASCII logos from the comfort of R
The Rfiglet Package For those who don't know what figlet is, it's a command line utility for creating ascii logos. Rfiglet, therefore, is a set of R bindings for figlet. Works about like you would...
View ArticleA "did you mean?" Feature for R
Most search engines have a "did you mean?" feature, where suggestions are given in the presence of likely typos. And while search engines use sophisticated NLP methods on their vast amounts of...
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One of My Favorite R Oddities: dump()
R is full of things that make "real programmers" (I dislike this term) turn their noses up in disgust. One of my favorites is the dump() function. It is...odd. I think the best way to introduce it to...
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Cache Rules Everything Around Me
Title with apologies to the Wu-Tang Clan. In this post, we're going to be discussing: Rcpp R's C interface The importance of CPU caches Performance benchmarking If none of these things is of interest...
View ArticleControlling a Remote R Session from a Local One
Say you have an Amazon EC2 instance running and you want to be able to control your R session running there from your local R session. At heart, this is not a new idea for the R community. You can...
View ArticlePerform co-operations with the coop package
About The coop package does co-operations: covariance, correlation, and cosine, and it does them quickly. The package is available on CRAN and GitHub, and has two vignettes: Introducing coop: Fast...
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Password Input with getPass
As of this morning, the getPass package version 0.1-1 is available on CRAN. The package offers a portable way to read user input without echoing the text, for the purposes of reading passwords. Some...
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