The next version of the htmltab package has just been released on CRAN and GitHub. The goal behind htmltab is to make the collection of structured information from HTML tables as easy and painless as possible (read about the package here and here). The most recent update got rid of ... [Read more...]

Stan 2.7 is now available for all interfaces. As usual, everything you need can be found starting from the Stan home page: http://mc-stan.org/ Highlights RStan is on CRAN!(1) Variational Inference in CmdStan!!(2) Two new Stan developers!!!  A whole new logo!!!!  Math library with autodiff now available in its own ... [Read more...]

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The R world has come a long way since Jay & I wrote Data-Driven Security. We had to make a conscious decision to stick with R 2.14.0 (R is at version 3.2.1 now) and packages such as knitr and dplyr either didn’t exist or were in their infancy. In Chapter 4, we showed ... [Read more...]

The R world has come a long way since Jay & I wrote Data-Driven Security. We had to make a conscious decision to stick with R 2.14.0 (R is at version 3.2.1 now) and packages such as knitr and dplyr either didn’t exist or were in their infancy. In Chapter 4, we showed ... [Read more...]

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A new version of caret (6.0-52) is on CRAN. Here is the news file but the Cliff Notes are: sub-sampling for class imbalances is now integrated with train and is used inside of standard resampling. There are four methods available right now: up- and... [Read more...]

A new version of caret (6.0-52) is on CRAN. Here is the news file but the Cliff Notes are: sub-sampling for class imbalances is now integrated with train and is used inside of standard resampling. There are four methods available right now: up- and... [Read more...]

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Dear R users, Here you are my last post on the useR! in [...] [Read more...]

Statistical software packages sell solutions. If you go to the home page for SAS, they will tell you upfront that they sell products and solutions. They link both together under the first tab just below "The Power to Know" mantra. SPSS separates product and solution into separate tabs, but places ... [Read more...]

Statistical software packages sell solutions. If you go to the home page for SAS, they will tell you upfront that they sell products and solutions. They link both together under the first tab just below "The Power to Know" mantra. SPSS separates produc... [Read more...]

by Gregory Vandenbrouck Software Engineer, Microsoft This post is the third in a series that covers pulling data from Microsoft SQL Server or MySQL/MariaDB on Azure to an R client on Windows or Linux. In the previous two, we covered pulling data from SQL Server and MySQL/MariaDB to ... [Read more...]

This is one of my favorite ggplot2 plots I’ve ever made, but it makes me sad. Can you deduce what this plot conveys? Explain the sporadically dashed colored horizontal bands. Explain the red vertical bars. Explain the black vertical bars. If you answer all three correctly, and you can ... [Read more...]

Introduction In this easy-to-follow R tutorial on loops we will examine the constructs available in R for looping, and how to make use of R’s vectorization feature to perform your looping tasks more efficiently. We will present a few looping examples; then criticize and deprecate these in favor of ... [Read more...]

LearnedLeague bills itself as “the greatest web-based trivia league in all of civilized earth.” Having been fortunate enough to partake in the past 3 seasons, I’m inclined to agree. LearnedLeague players, known as “LLamas”, answer trivia questions drawn from 18 assorted categories, and one of the many neat things about LearnedLeague ... [Read more...]

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You might find that loading data into R can be quite frustrating. Almost every single type of file that you want to get into R seems to require its own function, and even then you might get lost in the functions’ arguments. In short, it can be fairly easy to ... [Read more...]

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