May 2015

Interactive charts in R

May 19, 2015 | benjaminlmoore

I’m giving a talk tomorrow at the Edinburgh R usergroup (EdinbR) on how to get started building interactive charts in R. I’ll talk about rCharts as a great general entry point to quickly generating interactive charts, and also the newer htmlwidgets … Continue reading →
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How Predictable is the English Premier League?

May 19, 2015 | diffuseprior

The reason why football is so exciting is uncertainty. The outcome of any match or league is unknown, and you get to watch the action unfold without knowing what’s going to happen. Watching matches where you know the score is never exciting. This weekend the English Premier League season ...
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Posterior predictive output with Stan

May 18, 2015 | Markus Gesmann

I continue my Stan experiments with another insurance example. Here I am particular interested in the posterior predictive distribution from only three data points. Or, to put it differently I have a customer of three years and I'd like to predict the expected claims cost for the next year to ...
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Basic text string functions in R

May 18, 2015 | Luke Miller

To get the length of a text string (i.e. the number of characters in the string): Using length() would just give you the length of the vector containing the string, which will be 1 if the string is just a single string. To get the position of a regular expression ... [Read more...]

Bio7 2.1 for Windows 64 bit released

May 18, 2015 | » R

18.05.2015 I released a new version of the Integrated Development Environment Bio7 with new functions and many visual layout improvements of the Bio7 Graphical User Interface. Bio7 2.1 can be downloaded here: http://bio7.org Release notes Bio7 2.1: R: Updated R to version 3.2.0. Improved the R perspective layout (see below). Improved the ... [Read more...]

Getting started with PostgreSQL in R

May 18, 2015 | David Zimmermann

When dealing with large datasets that potentially exceed the memory of your machine it is nice to have another possibility such as your own server with an SQL/PostgreSQL database on it, where you can query the data in smaller digestible chunks. For example, recently I was facing a financial ...
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What’s new in Revolution R Enterprise 7.4

May 18, 2015 | Bill Jacobs

by Bill Jacobs, Director Technical Sales, Microsoft Advanced Analytics Without missing a beat, the engineers at Revolution Analytics have brought another strong release to users of Revolution R Enterprise (RRE). Just a few weeks after acquisition of Revolution Analytics by Microsoft, RRE 7.4 was released to customers on May 15 adding new ... [Read more...]

Scraping jQuery DataTable Programmatic JSON with R

May 18, 2015 | hrbrmstr

School of Data had a recent post how to copy “every item” from a multi-page list. While their post did provide a neat hack, their “words of warning” are definitely missing some items and the overall methodology can be improved upon with some basic R scripting. First, the technique they ...
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DataCamp R Certifications – Now Available on Your LinkedIn Profile

May 18, 2015 | DataCamp

You can now quickly and easily integrate your DataCamp.com course completion certificates with your LinkedIn profile. Showcase any completed DataCamp course on your profile, including our free Introduction to R course. Share with managers, recruiters and potential clients the skills and knowledge you’ve acquired at DataCamp. In just ... [Read more...]

The perfect t-test

May 18, 2015 | Daniel Lakens

I've created an easy to use R script that will import your data, and performs and writes up a state-of-the-art dependent or independent t-test. The goal of this script is to examine whether more researcher-centered statistical tools (i.e., a one-click analysis script that checks normality assumptions, calculates effect sizes ...
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Gini index to compute inequality or impurity in the data

May 18, 2015 | Ashish

"Gini index measures the extent to which the distribution of income or consumption expenditure among individuals or households within an economy deviates from a perfectly equal distribution. Thus a Gini index of 0 represents perfect equality, while an index of 100 implies perfect inequality.
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random 0.2.4

May 17, 2015 | Thinking inside the box

A new release of our random package for truly (hardware-based) random numbers as provided by random.org is now on CRAN. The R 3.2.0 release brought the change to use an internal method="libcurl" which we are using if available; else the curl::curl() method added in release 0.2.3 is used. We ... [Read more...]

infuser: a template engine for R

May 17, 2015 | FishyOperations

Version 0.1 of infuser was just released on CRAN. infuser is a very basic templating engine. It allows you to replace parameters in character strings or text files with a given specified value. I would often include some SQL code in my R scripts so t... [Read more...]

The paper helicopter experiment

May 17, 2015 | Wingfeet

The paper helicopter is one of the devices to explain about design of experiments. The aim is to create the longest flying paper helicopter by means of experimental design.Paper helicopters are a nice example, because they are cheap to make, easy to te... [Read more...]
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