January 2015

The leaflet package for online mapping in R

January 31, 2015 | 0 Comments

It has been possible for some years to launch a web map from within R. A number of packages for doing this are available, including: RgoogleMaps, an interface to the Google Maps api leafletR, an early package for creating Leaflet maps with R rCharts, which can be used as a ... [Read more...]

Bio7 2.0 for Linux Released!

January 31, 2015 | 0 Comments

01.02.2015 I released the Linux version of Bio7 2.0 (see screenshot below). For an overview of the new Bio7 features follow the link: Bio7 2.0 new features Added Linux features: A new Java menu action (in the Scripts menu) is available to start a Py4J server which can communicate to Java and ... [Read more...]

Rediscovering Formula One Race Battlemaps

January 31, 2015 | 0 Comments

A couple of days ago, I posted a recipe on the F1DataJunkie blog that described how to calculate track position from laptime data. Using that information, as well as additional derived columns such as the identity of, and time to, the cars immediately ahead of and behind a particular ...
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Carl Boettiger on accessing online data with ROpenSci

January 30, 2015 | 0 Comments

*Today, Carl Boettiger gave a tutorial on the ROpenSci project and how to use their many packages to connect to online data repositories to retrieve and up deposit data. Here’s our screencast of the talk. All the code from this talk is available at this github repository, and you ... [Read more...]

Fumbling fumble statistics

January 30, 2015 | 0 Comments

Follow Email I wanted to add my two-cents worth to the “Deflate-gate” statistics row that’s been going on recently. If you want to catch up with the story, then you should start with the original articles at Sharp Football Analysis (1, 2) and this critique by Gregory J. Matthews and Michael ... [Read more...]

littler 0.2.2

January 30, 2015 | 0 Comments

A new minor release of littler is available now. Several examples were added or extended: a new script check.r to check a source tarball with R CMD check after loading required packages first (and a good use case was given in the recent UBSAN testi... [Read more...]

How e Can Help You To Find The Love Of Your Life

January 30, 2015 | 0 Comments

Match.com will bring more love to the planet than anything since Jesus Christ (Gary Kremen, founder of Match.com) Charlie is a brilliant 39 years old mathematician living in Massachusetts. He lives alone and has dedicated his whole life to study. He has realized lately that theorems and books no ...
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An R User Group Mini Conference

January 29, 2015 | 0 Comments

by Joseph Rickert With a membership that spans the entire Bay Area and the ability to hold meetings from San Jose to San Francisco, the Bay Area useR Group is in the very fortunate position of being able to attract world-class R speakers on a regular basis. Meetings that feature ... [Read more...]

What does a Bayes factor feel like?

January 29, 2015 | 0 Comments

A Bayes factor (BF) is a statistical index that quantifies the evidence for a hypothesis, compared to an alternative hypothesis (for introductions to Bayes factors, see here, here or here). Although the BF is a continuous measure of evidence, humans love verbal labels, categories, and benchmarks. Labels give interpretations of ...
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Modelo de Volatilidade para Ação da Petrobras

January 28, 2015 | 0 Comments

Resolvi modelar a volatilidade da ação da Petrobras (PETR4). Para tal, ajustei um modelo Beta-Skew-t-Egarch, quem tiver interesse vale a pena olhar em http://www.econ.cam.ac.uk/dae/repec/cam/pdf/cwpe1236.pdfO modelo tem várias vantagens em relação ao tradicional GARCH.Fatos interessantes:- ... [Read more...]

RStudio – Infoworld 2015 Technology of the Year Award Recipient!

January 28, 2015 | 0 Comments

Sometimes the universe surprises us. In this case, it was in a good way and we genuinely appreciated it. Earlier this week we learned that the Infoworld Testing Center staff selected RStudio as one of 32 recipients of the 2015 Technology of the Year Award. We thought it was cool because it ... [Read more...]

Now’s a great time to learn R. Here’s how.

January 28, 2015 | 0 Comments

In a recent article at opensource.com, I offer up some reasons why now is the time to learn R: data scientists are in high demand, R is the natural language for data scientists, and companies around the world are using R (and hiring R programmers) to make sense of ... [Read more...]

Bringing a Revolution to Microsoft

January 28, 2015 | 0 Comments

By Mark Sellors – Senior IT Consultant, UK. In a move that further validates the entire R community, our good friends and colleagues at Revolution Analytics announced their acquisition by Microsoft on Friday. In the short term, Revolution are expecting … Continue reading → [Read more...]

From Markdown to LaTeX output using RMarkdown.

January 28, 2015 | 0 Comments

I’ve been working on the ggRandomForests vignettes pretty consistently now. I’m writing the randomForestSRC-Survival vignette in LaTeX with the knitr vignette engine. I wrote the the randomForestSRC-Regression vignette in markdown. I’ve decided to upload the Regression vignette to arXiv for… Continue reading →
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