1405 search results for "rstudio"

YATORP — Yet Another Tutorial on R Packaging

November 24, 2014
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What the world needs right now is yet another tutorial on R packages and their creation. Luckily, this last Friday and Saturday, I had the opportunity to present in a workshop organized by Frank DiTraglia at Penn's shiny new Warren Center, and held a...

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rvest: easy web scraping with R

November 24, 2014
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rvest: easy web scraping with R

rvest is new package that makes it easy to scrape (or harvest) data from html web pages, by libraries like beautiful soup. It is designed to work with magrittr so that you can express complex operations as elegant pipelines composed of simple, easily understood pieces. Install it with: install.packages("rvest") rvest in action To see rvest

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Synchronization for R with the flock Package

November 20, 2014
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Have you tried synchronizing R processes? I did and it wasn’t straightforward. In fact, I ended up creating a new package – flock. One of the improvements I did not too long ago to my R back-testing infrastructure was to start using a database to store the results. This way I can compute all interesting

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The ensurer package (validation inside pipes)

November 19, 2014
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The ensurer package (validation inside pipes)

Guest post by Stefan Holst Milton Bache on the ensurer package. If you use R in a production environment, you have most likely experienced that some circumstances change in ways that will make your R scripts run into trouble. Many things can go wrong; package updates, external data sources, daylight savings time, etc. There is a general

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LA R Meetup Summary: Highlights from useR! 2014 – Part 2

November 18, 2014
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LA R Meetup Summary: Highlights from useR! 2014 – Part 2

Last week the LA R meetup featured another round of 5 speakers each highlighting a...

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rmarkdown: Alter Action Depending on Document

November 18, 2014
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rmarkdown: Alter Action Depending on Document

Can I see a show of hands for those who love rmarkdown? Yeah me too. One nifty feature is the ability to specify various document prettifications in the YAML of a .Rmd document and then use: The Problem Have you … Continue reading →

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A Letter of Recommendation for Nan Xiao

November 17, 2014
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A Letter of Recommendation for Nan Xiao

I hope my letter could boost this guy up like: I'm not sure if I'm a good observer, but time and time again I feel some people are undervalued, or they were not given better opportunities to show their value. Not surprisingly, I know quite a few such people in the Chinese R/stats community, mainly because of the...

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In case you missed it: October 2014 Roundup

November 12, 2014
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In case you missed them, here are some articles from October of particular interest to R users. R hits a new milestone with 6,000 CRAN packages, and R 3.1.2 released. Revolution Analytics announces Revolution R Open, a supported and enhanced downstream distribution of R. (Learn more at the webinar on Wednesday November 12.) Some benchmarks on the performance improvements...

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R, R with Atlas, R with OpenBLAS and Revolution R Open: which is fastest?

November 10, 2014
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In this short post, I benchmark different “versions” of R. I compare the execution speeds of R, R linked against OpenBLAS, R linked against ATLAS and Revolution R Open. Revolution R Open is a new open source version of R made by Revolution Analytics. It is linked against MKL and should offer huge speed improvements over...

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OpenCPU release 1.4.5: configurable webhooks

November 9, 2014
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OpenCPU release 1.4.5: configurable webhooks

OpenCPU 1.4.5 is a patch release that improves performance by taking advantage of latest versions of jsonlite, devtools, knitr, openssl, etc. Also new in this release is the option to pass build parameters for deploying on ocpu.io (or your own ...

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