In this set of exercises we will introduce the concept of 3D plotting. Specifically, we will use these commands:image(), contour() and persp(). For these exercises, you need to have a basic understanding of R objects and functions, in particular some knowledge about matrix . This set is the fourth set ... [Read more...]

A new version of RcppAPT -- our interface from R to the C++ library behind the awesome apt, apt-get, apt-cache, ... commands and their cache -- is now on CRAN. It adds three new commands to the package. Two are relatively simple: showSrc() and dumpPa... [Read more...]

Many people keep asking me whether I have tried SparkR, is it worth using, is it sexy or WHAT is it at all. I felt that creating frequently asked questions (FAQ) in the field of WHAT is that Spark/SparkR? would help many R Scientists to understand this Big Data ... [Read more...]

Just kidding; it was amazing. Last week, I traveled to San Francisco to participate in an unconference/hackathon organized and hosted by ROpenSci. This was my first R conference or meeting, and it was a such a great experience. I am still feeling a bit at a loss for words ... [Read more...]

This Wednesday, I will give a graduate crash course on computational actuarial science, with R, which will be the second part of the lecture of Tuesday. Slides are now available, [Read more...]

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High winds in the Delaware Estuary region caused a "blowout" tide in early April 2016, where observed water surface elevations were much lower than those predicted via harmonic constituents.  Extreme low blowout tides can hamper navigation due insufficient depth.This animated graph was created in R using data obtained from the ... [Read more...]

High winds in the Delaware Estuary region caused a "blowout" tide in early April 2016, where observed water surface elevations were much lower than those predicted via harmonic constituents.  Extreme low blowout tides can hamper navigation due ins... [Read more...]

  Plain vanilla barplots are as uninformative (and ugly) as they are popular. And boy, are they popular. From the floors of congress, to our latest scientific articles, barplots surround us. The reason why barplots are so popular is because they are so simple and easy to understand. However, that simplicity ... [Read more...]

Through this post, I would like to share an update to my RTutoR package. The first version of this package included an R Basics Tutorial App which I published earlier at DataScience+ The updated version of this package, which is now on CRAN, includes a plotting app. This app provides ... [Read more...]

Airbnb, the property-rental marketplace that helps you find a place to stay when you're travelling, uses R to scale data science. Airbnb is a famously data-driven company, and has recently gone through a period of rapid growth. To accommodate the influx of data scientists (80% of whom are proficient in R, ... [Read more...]

No output has been received in the last 10m0s, this potentially indicates a stalled build or something wrong with the build itself. As part of getting RSiteCatalyst 1.4.8 ready for CRAN, I’ve managed to accumulate hundreds of testthat tests across 63 test files. Each of these tests runs on Travis ... [Read more...]

With my HIBPwned package, I consume the HaveIBeenPwned API and return back a list object with an element for each email address. Each element holds a data.frame of breach data or a stub response with a single column data.frame containing NA. Elements are named with the email addresses ... [Read more...]

As part of getting RSiteCatalyst 1.4.8 ready for CRAN, I’ve managed to accumulate hundreds of testthat tests across 63 test files. Each of these tests runs on Travis CI against an authenticated API, and the API frequently queues long-running report... [Read more...]

How to apply one or many functions to one or many variables using dplyr: a practical guide to the use of summarise() and summarise_each() The post Aggregation with dplyr: summarise and summarise_each appeared first on MilanoR. [Read more...]

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The iptools package—a toolkit for manipulating, validating and testing IP addresses and ranges, along with datasets relating to IP addresses—is flying through the internets and hitting a CRAN mirror near you, soon. What’s fixed? Tim Smith fixed a bug in ip_in_range() that occurred when the ... [Read more...]

The field of neuroscience -- the study of brains and the nervous system -- has taken some major leaps in recent years. Scientists can now gather real-time electrical activity from the brain during actions and thoughts, which is helping to pinpoint the exact location of brain lesions caused by strokes, ... [Read more...]

EARL2016 will feature a day of workshops on 13th September preceding the full conference days. These will be interactive workshops on a variety of R related topics, from introductory to advanced levels. Due to the interactive nature of the workshops, … Continue reading → [Read more...]