1109 search results for "RStudio"

Visualize Prospect Theory

December 5, 2014
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Visualize Prospect Theory

Cool Prospect Theory Visualizer draws the curves for you. The post Visualize Prospect Theory appeared first on Decision Science News.

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New features in jsonlite 0.9.14

December 4, 2014
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New features in jsonlite 0.9.14

The jsonlite package implements a robust, high performance JSON parser and generator for R, optimized for statistical data and the web. This week version 0.9.14 appeared on CRAN which adds some handy new features. Significant Digits By defaul...

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dplyr – some more reflections

December 4, 2014
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Yesterday, I published a post here on DataScience.LA with a simple/basic benchmark for dplyr. It...

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magrittr 1.5

December 1, 2014
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2014-12-02 22_48_10-Clipboard

(Posted on behalf of Stefan Milton Bache) Sometimes it’s the small things that make a big difference. For me, the introduction of our awkward looking friend, %>%, was one such little thing. I’d never suspected that it would have such an impact on the way quite a few people think and write R (including my

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CRAN Task Views for Finance and HPC now (also) on GitHub

November 28, 2014
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The CRAN Task View system is a fine project which Achim Zeileis initiated almost a decade ago. It is described in a short R Journal article in Volume 5, Number 1. I have been editor / maintainer of the Finance task view essentially since the very beginning of these CRAN Task Views, and...

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R, an Integrated Statistical Programming Environment and GIS

November 27, 2014
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R, an Integrated Statistical Programming Environment and GIS

This article was originally published in Geoinformatics magazine. R is well known as a powerful, extensible and relatively fast statistical programming language and open software project with a command line interface (CLI). What is less well known is that R also has cutting edge spatial packages that allow it to behave as a fully featured Geographical Information System...

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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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