I came accross this post on SO, where several solutions to sorting data.frames are presented. It must have been solved a million times, but here's a solution I like to use. It benefits from the fact that sort is an … Continue reading →

I came accross this post on SO, where several solutions to sorting data.frames are presented. It must have been solved a million times, but here's a solution I like to use. It benefits from the fact that sort is an … Continue reading →

Recently, Packt published a video course with the above title, and I've just spent a pleasant morning reviewing it on Packt's request. Pleasant, because I think the course gives an excellent introduction to both ggplot2 and shiny. The course is … Continue reading →

After my last post about the stringdist package, Zachary Mayer pointed out to me that the implementation of the Levenshtein and Jaro-Winkler distances implemented in the RecordLinkage package are about two-three times faster. His benchmark compares randomly generated character strings … Continue reading →

I have released a new version of the stringdist package. Besides a some new string distance algorithms it now contains two convenient matching functions: amatch: Equivalent to R's match function but allowing for approximate matching. ain: Similar to R's %in% … Continue reading →

String metrics have important applications in web search, spelling correction and computational biology amongst others. Many different metrics exist, but the most well-known are based on counting the number of basic edit operations it takes to turn one string into … Continue reading →

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